Home / 21,488.28-32,226.18-9,007.96

Finding the Fourth Proportional to 21,488.28, 32,226.18 and 9,007.96

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Solution

The fourth proportional to 21,488.28, 32,226.18 and 9,007.96 is: 13,509.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,488.28 : 32,226.18 = 9,007.96 : x
  2. Step 2: Convert to fraction form
    21,488.28/32,226.18 = 9,007.96/x
  3. Step 3: Cross multiply
    21,488.28x = 32,226.18 × 9,007.96
  4. Step 4: Simplify right side
    21,488.28x = 290,292,140.39
  5. Step 5: Solve for x
    x = 290,292,140.39/21,488.28
  6. Step 6: Final answer
    x = 13,509.32

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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.