Home / 28,232.22-42,513.27-20,888.34

Finding the Fourth Proportional to 28,232.22, 42,513.27 and 20,888.34

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Solution

The fourth proportional to 28,232.22, 42,513.27 and 20,888.34 is: 31,454.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,232.22 : 42,513.27 = 20,888.34 : x
  2. Step 2: Convert to fraction form
    28,232.22/42,513.27 = 20,888.34/x
  3. Step 3: Cross multiply
    28,232.22x = 42,513.27 × 20,888.34
  4. Step 4: Simplify right side
    28,232.22x = 888,031,638.27
  5. Step 5: Solve for x
    x = 888,031,638.27/28,232.22
  6. Step 6: Final answer
    x = 31,454.55

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.