Home / 21,560.31-32,318.55-16,355.25

Finding the Fourth Proportional to 21,560.31, 32,318.55 and 16,355.25

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Solution

The fourth proportional to 21,560.31, 32,318.55 and 16,355.25 is: 24,516.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,560.31 : 32,318.55 = 16,355.25 : x
  2. Step 2: Convert to fraction form
    21,560.31/32,318.55 = 16,355.25/x
  3. Step 3: Cross multiply
    21,560.31x = 32,318.55 × 16,355.25
  4. Step 4: Simplify right side
    21,560.31x = 528,577,964.89
  5. Step 5: Solve for x
    x = 528,577,964.89/21,560.31
  6. Step 6: Final answer
    x = 24,516.25

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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.