Home / 21,320.28-32,013.22-19,002.06

Finding the Fourth Proportional to 21,320.28, 32,013.22 and 19,002.06

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Solution

The fourth proportional to 21,320.28, 32,013.22 and 19,002.06 is: 28,532.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,320.28 : 32,013.22 = 19,002.06 : x
  2. Step 2: Convert to fraction form
    21,320.28/32,013.22 = 19,002.06/x
  3. Step 3: Cross multiply
    21,320.28x = 32,013.22 × 19,002.06
  4. Step 4: Simplify right side
    21,320.28x = 608,316,872.16
  5. Step 5: Solve for x
    x = 608,316,872.16/21,320.28
  6. Step 6: Final answer
    x = 28,532.32

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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.