Home / 20,316.22-28,038.98-11,364.22

Finding the Fourth Proportional to 20,316.22, 28,038.98 and 11,364.22

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Solution

The fourth proportional to 20,316.22, 28,038.98 and 11,364.22 is: 15,684.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316.22 : 28,038.98 = 11,364.22 : x
  2. Step 2: Convert to fraction form
    20,316.22/28,038.98 = 11,364.22/x
  3. Step 3: Cross multiply
    20,316.22x = 28,038.98 × 11,364.22
  4. Step 4: Simplify right side
    20,316.22x = 318,641,137.30
  5. Step 5: Solve for x
    x = 318,641,137.30/20,316.22
  6. Step 6: Final answer
    x = 15,684.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.