Home / 20,686.16-31,058.40-14,839.58

Finding the Fourth Proportional to 20,686.16, 31,058.40 and 14,839.58

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Solution

The fourth proportional to 20,686.16, 31,058.40 and 14,839.58 is: 22,280.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,686.16 : 31,058.40 = 14,839.58 : x
  2. Step 2: Convert to fraction form
    20,686.16/31,058.40 = 14,839.58/x
  3. Step 3: Cross multiply
    20,686.16x = 31,058.40 × 14,839.58
  4. Step 4: Simplify right side
    20,686.16x = 460,893,611.47
  5. Step 5: Solve for x
    x = 460,893,611.47/20,686.16
  6. Step 6: Final answer
    x = 22,280.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.