Home / 15,030.50-20,727.48-13,553.86

Finding the Fourth Proportional to 15,030.50, 20,727.48 and 13,553.86

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Solution

The fourth proportional to 15,030.50, 20,727.48 and 13,553.86 is: 18,691.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,030.50 : 20,727.48 = 13,553.86 : x
  2. Step 2: Convert to fraction form
    15,030.50/20,727.48 = 13,553.86/x
  3. Step 3: Cross multiply
    15,030.50x = 20,727.48 × 13,553.86
  4. Step 4: Simplify right side
    15,030.50x = 280,937,362.07
  5. Step 5: Solve for x
    x = 280,937,362.07/15,030.50
  6. Step 6: Final answer
    x = 18,691.15

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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.