Home / 23,431.90-32,312.98-21,487.02

Finding the Fourth Proportional to 23,431.90, 32,312.98 and 21,487.02

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Solution

The fourth proportional to 23,431.90, 32,312.98 and 21,487.02 is: 29,630.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,431.90 : 32,312.98 = 21,487.02 : x
  2. Step 2: Convert to fraction form
    23,431.90/32,312.98 = 21,487.02/x
  3. Step 3: Cross multiply
    23,431.90x = 32,312.98 × 21,487.02
  4. Step 4: Simplify right side
    23,431.90x = 694,309,647.52
  5. Step 5: Solve for x
    x = 694,309,647.52/23,431.90
  6. Step 6: Final answer
    x = 29,630.96

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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.