Home / 28,255.28-42,355.35-13,460.24

Finding the Fourth Proportional to 28,255.28, 42,355.35 and 13,460.24

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Solution

The fourth proportional to 28,255.28, 42,355.35 and 13,460.24 is: 20,177.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,255.28 : 42,355.35 = 13,460.24 : x
  2. Step 2: Convert to fraction form
    28,255.28/42,355.35 = 13,460.24/x
  3. Step 3: Cross multiply
    28,255.28x = 42,355.35 × 13,460.24
  4. Step 4: Simplify right side
    28,255.28x = 570,113,176.28
  5. Step 5: Solve for x
    x = 570,113,176.28/28,255.28
  6. Step 6: Final answer
    x = 20,177.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.