Home / 21,489.56-29,657.10-12,058.52

Finding the Fourth Proportional to 21,489.56, 29,657.10 and 12,058.52

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Solution

The fourth proportional to 21,489.56, 29,657.10 and 12,058.52 is: 16,641.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,489.56 : 29,657.10 = 12,058.52 : x
  2. Step 2: Convert to fraction form
    21,489.56/29,657.10 = 12,058.52/x
  3. Step 3: Cross multiply
    21,489.56x = 29,657.10 × 12,058.52
  4. Step 4: Simplify right side
    21,489.56x = 357,620,733.49
  5. Step 5: Solve for x
    x = 357,620,733.49/21,489.56
  6. Step 6: Final answer
    x = 16,641.60

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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.