Home / 39,437.04-54,423.21-21,532.05

Finding the Fourth Proportional to 39,437.04, 54,423.21 and 21,532.05

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Solution

The fourth proportional to 39,437.04, 54,423.21 and 21,532.05 is: 29,714.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,437.04 : 54,423.21 = 21,532.05 : x
  2. Step 2: Convert to fraction form
    39,437.04/54,423.21 = 21,532.05/x
  3. Step 3: Cross multiply
    39,437.04x = 54,423.21 × 21,532.05
  4. Step 4: Simplify right side
    39,437.04x = 1,171,843,278.88
  5. Step 5: Solve for x
    x = 1,171,843,278.88/39,437.04
  6. Step 6: Final answer
    x = 29,714.28

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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.