Home / 21,705.10-32,557.65-16,456.30

Finding the Fourth Proportional to 21,705.10, 32,557.65 and 16,456.30

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Solution

The fourth proportional to 21,705.10, 32,557.65 and 16,456.30 is: 24,684.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,705.10 : 32,557.65 = 16,456.30 : x
  2. Step 2: Convert to fraction form
    21,705.10/32,557.65 = 16,456.30/x
  3. Step 3: Cross multiply
    21,705.10x = 32,557.65 × 16,456.30
  4. Step 4: Simplify right side
    21,705.10x = 535,778,455.70
  5. Step 5: Solve for x
    x = 535,778,455.70/21,705.10
  6. Step 6: Final answer
    x = 24,684.45

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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.