Home / 20,701.43-28,586.95-13,150.19

Finding the Fourth Proportional to 20,701.43, 28,586.95 and 13,150.19

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Solution

The fourth proportional to 20,701.43, 28,586.95 and 13,150.19 is: 18,159.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,701.43 : 28,586.95 = 13,150.19 : x
  2. Step 2: Convert to fraction form
    20,701.43/28,586.95 = 13,150.19/x
  3. Step 3: Cross multiply
    20,701.43x = 28,586.95 × 13,150.19
  4. Step 4: Simplify right side
    20,701.43x = 375,923,824.02
  5. Step 5: Solve for x
    x = 375,923,824.02/20,701.43
  6. Step 6: Final answer
    x = 18,159.32

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Double scale
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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.