Home / 20,326.16-28,052.52-13,247.12

Finding the Fourth Proportional to 20,326.16, 28,052.52 and 13,247.12

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Solution

The fourth proportional to 20,326.16, 28,052.52 and 13,247.12 is: 18,282.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,326.16 : 28,052.52 = 13,247.12 : x
  2. Step 2: Convert to fraction form
    20,326.16/28,052.52 = 13,247.12/x
  3. Step 3: Cross multiply
    20,326.16x = 28,052.52 × 13,247.12
  4. Step 4: Simplify right side
    20,326.16x = 371,615,098.74
  5. Step 5: Solve for x
    x = 371,615,098.74/20,326.16
  6. Step 6: Final answer
    x = 18,282.60

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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.