Home / 21,423.89-32,070.99-19,449.52

Finding the Fourth Proportional to 21,423.89, 32,070.99 and 19,449.52

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Solution

The fourth proportional to 21,423.89, 32,070.99 and 19,449.52 is: 29,115.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,423.89 : 32,070.99 = 19,449.52 : x
  2. Step 2: Convert to fraction form
    21,423.89/32,070.99 = 19,449.52/x
  3. Step 3: Cross multiply
    21,423.89x = 32,070.99 × 19,449.52
  4. Step 4: Simplify right side
    21,423.89x = 623,765,244.78
  5. Step 5: Solve for x
    x = 623,765,244.78/21,423.89
  6. Step 6: Final answer
    x = 29,115.40

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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.