Home / 34,479.76-47,587.20-21,058.72

Finding the Fourth Proportional to 34,479.76, 47,587.20 and 21,058.72

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Solution

The fourth proportional to 34,479.76, 47,587.20 and 21,058.72 is: 29,064.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,479.76 : 47,587.20 = 21,058.72 : x
  2. Step 2: Convert to fraction form
    34,479.76/47,587.20 = 21,058.72/x
  3. Step 3: Cross multiply
    34,479.76x = 47,587.20 × 21,058.72
  4. Step 4: Simplify right side
    34,479.76x = 1,002,125,520.38
  5. Step 5: Solve for x
    x = 1,002,125,520.38/34,479.76
  6. Step 6: Final answer
    x = 29,064.17

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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.