Home / 28,116.52-38,800.65-15,541.27

Finding the Fourth Proportional to 28,116.52, 38,800.65 and 15,541.27

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Solution

The fourth proportional to 28,116.52, 38,800.65 and 15,541.27 is: 21,446.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,116.52 : 38,800.65 = 15,541.27 : x
  2. Step 2: Convert to fraction form
    28,116.52/38,800.65 = 15,541.27/x
  3. Step 3: Cross multiply
    28,116.52x = 38,800.65 × 15,541.27
  4. Step 4: Simplify right side
    28,116.52x = 603,011,377.83
  5. Step 5: Solve for x
    x = 603,011,377.83/28,116.52
  6. Step 6: Final answer
    x = 21,446.87

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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.