Home / 39,387.84-54,353.58-21,482.52

Finding the Fourth Proportional to 39,387.84, 54,353.58 and 21,482.52

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Solution

The fourth proportional to 39,387.84, 54,353.58 and 21,482.52 is: 29,644.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,387.84 : 54,353.58 = 21,482.52 : x
  2. Step 2: Convert to fraction form
    39,387.84/54,353.58 = 21,482.52/x
  3. Step 3: Cross multiply
    39,387.84x = 54,353.58 × 21,482.52
  4. Step 4: Simplify right side
    39,387.84x = 1,167,651,869.42
  5. Step 5: Solve for x
    x = 1,167,651,869.42/39,387.84
  6. Step 6: Final answer
    x = 29,644.98

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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.