Home / 28,079.55-38,749.49-15,332.70

Finding the Fourth Proportional to 28,079.55, 38,749.49 and 15,332.70

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Solution

The fourth proportional to 28,079.55, 38,749.49 and 15,332.70 is: 21,158.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,079.55 : 38,749.49 = 15,332.70 : x
  2. Step 2: Convert to fraction form
    28,079.55/38,749.49 = 15,332.70/x
  3. Step 3: Cross multiply
    28,079.55x = 38,749.49 × 15,332.70
  4. Step 4: Simplify right side
    28,079.55x = 594,134,305.32
  5. Step 5: Solve for x
    x = 594,134,305.32/28,079.55
  6. Step 6: Final answer
    x = 21,158.97

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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.