Home / 28,129.04-42,214.32-13,337.92

Finding the Fourth Proportional to 28,129.04, 42,214.32 and 13,337.92

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Solution

The fourth proportional to 28,129.04, 42,214.32 and 13,337.92 is: 20,016.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,129.04 : 42,214.32 = 13,337.92 : x
  2. Step 2: Convert to fraction form
    28,129.04/42,214.32 = 13,337.92/x
  3. Step 3: Cross multiply
    28,129.04x = 42,214.32 × 13,337.92
  4. Step 4: Simplify right side
    28,129.04x = 563,051,223.01
  5. Step 5: Solve for x
    x = 563,051,223.01/28,129.04
  6. Step 6: Final answer
    x = 20,016.72

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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.