Home / 21,439.34-32,169.98-10,207.38

Finding the Fourth Proportional to 21,439.34, 32,169.98 and 10,207.38

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Solution

The fourth proportional to 21,439.34, 32,169.98 and 10,207.38 is: 15,316.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,439.34 : 32,169.98 = 10,207.38 : x
  2. Step 2: Convert to fraction form
    21,439.34/32,169.98 = 10,207.38/x
  3. Step 3: Cross multiply
    21,439.34x = 32,169.98 × 10,207.38
  4. Step 4: Simplify right side
    21,439.34x = 328,371,210.45
  5. Step 5: Solve for x
    x = 328,371,210.45/21,439.34
  6. Step 6: Final answer
    x = 15,316.29

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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.