Home / 21,487.50-29,652.75-12,055.86

Finding the Fourth Proportional to 21,487.50, 29,652.75 and 12,055.86

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Solution

The fourth proportional to 21,487.50, 29,652.75 and 12,055.86 is: 16,637.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,487.50 : 29,652.75 = 12,055.86 : x
  2. Step 2: Convert to fraction form
    21,487.50/29,652.75 = 12,055.86/x
  3. Step 3: Cross multiply
    21,487.50x = 29,652.75 × 12,055.86
  4. Step 4: Simplify right side
    21,487.50x = 357,489,402.62
  5. Step 5: Solve for x
    x = 357,489,402.62/21,487.50
  6. Step 6: Final answer
    x = 16,637.09

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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.