Home / 21,495.90-32,248.65-16,830.30

Finding the Fourth Proportional to 21,495.90, 32,248.65 and 16,830.30

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Solution

The fourth proportional to 21,495.90, 32,248.65 and 16,830.30 is: 25,249.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,495.90 : 32,248.65 = 16,830.30 : x
  2. Step 2: Convert to fraction form
    21,495.90/32,248.65 = 16,830.30/x
  3. Step 3: Cross multiply
    21,495.90x = 32,248.65 × 16,830.30
  4. Step 4: Simplify right side
    21,495.90x = 542,754,454.10
  5. Step 5: Solve for x
    x = 542,754,454.10/21,495.90
  6. Step 6: Final answer
    x = 25,249.21

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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.