Home / 21,445.12-32,123.58-10,318.96

Finding the Fourth Proportional to 21,445.12, 32,123.58 and 10,318.96

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Solution

The fourth proportional to 21,445.12, 32,123.58 and 10,318.96 is: 15,457.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,445.12 : 32,123.58 = 10,318.96 : x
  2. Step 2: Convert to fraction form
    21,445.12/32,123.58 = 10,318.96/x
  3. Step 3: Cross multiply
    21,445.12x = 32,123.58 × 10,318.96
  4. Step 4: Simplify right side
    21,445.12x = 331,481,937.08
  5. Step 5: Solve for x
    x = 331,481,937.08/21,445.12
  6. Step 6: Final answer
    x = 15,457.22

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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.