Home / 28,077.76-38,747.32-15,502.52

Finding the Fourth Proportional to 28,077.76, 38,747.32 and 15,502.52

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Solution

The fourth proportional to 28,077.76, 38,747.32 and 15,502.52 is: 21,393.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,077.76 : 38,747.32 = 15,502.52 : x
  2. Step 2: Convert to fraction form
    28,077.76/38,747.32 = 15,502.52/x
  3. Step 3: Cross multiply
    28,077.76x = 38,747.32 × 15,502.52
  4. Step 4: Simplify right side
    28,077.76x = 600,681,103.25
  5. Step 5: Solve for x
    x = 600,681,103.25/28,077.76
  6. Step 6: Final answer
    x = 21,393.48

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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.