Home / 39,234.84-54,145.14-21,331.08

Finding the Fourth Proportional to 39,234.84, 54,145.14 and 21,331.08

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Solution

The fourth proportional to 39,234.84, 54,145.14 and 21,331.08 is: 29,437.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,234.84 : 54,145.14 = 21,331.08 : x
  2. Step 2: Convert to fraction form
    39,234.84/54,145.14 = 21,331.08/x
  3. Step 3: Cross multiply
    39,234.84x = 54,145.14 × 21,331.08
  4. Step 4: Simplify right side
    39,234.84x = 1,154,974,312.95
  5. Step 5: Solve for x
    x = 1,154,974,312.95/39,234.84
  6. Step 6: Final answer
    x = 29,437.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.