Home / 20,416.52-28,165.50-13,695.14

Finding the Fourth Proportional to 20,416.52, 28,165.50 and 13,695.14

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Solution

The fourth proportional to 20,416.52, 28,165.50 and 13,695.14 is: 18,893.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,416.52 : 28,165.50 = 13,695.14 : x
  2. Step 2: Convert to fraction form
    20,416.52/28,165.50 = 13,695.14/x
  3. Step 3: Cross multiply
    20,416.52x = 28,165.50 × 13,695.14
  4. Step 4: Simplify right side
    20,416.52x = 385,730,465.67
  5. Step 5: Solve for x
    x = 385,730,465.67/20,416.52
  6. Step 6: Final answer
    x = 18,893.06

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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.