Home / 27,898.68-38,500.20-15,151.62

Finding the Fourth Proportional to 27,898.68, 38,500.20 and 15,151.62

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Solution

The fourth proportional to 27,898.68, 38,500.20 and 15,151.62 is: 20,909.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,898.68 : 38,500.20 = 15,151.62 : x
  2. Step 2: Convert to fraction form
    27,898.68/38,500.20 = 15,151.62/x
  3. Step 3: Cross multiply
    27,898.68x = 38,500.20 × 15,151.62
  4. Step 4: Simplify right side
    27,898.68x = 583,340,400.32
  5. Step 5: Solve for x
    x = 583,340,400.32/27,898.68
  6. Step 6: Final answer
    x = 20,909.25

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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.