Home / 39,228.17-54,134.95-21,323.13

Finding the Fourth Proportional to 39,228.17, 54,134.95 and 21,323.13

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Solution

The fourth proportional to 39,228.17, 54,134.95 and 21,323.13 is: 29,425.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,228.17 : 54,134.95 = 21,323.13 : x
  2. Step 2: Convert to fraction form
    39,228.17/54,134.95 = 21,323.13/x
  3. Step 3: Cross multiply
    39,228.17x = 54,134.95 × 21,323.13
  4. Step 4: Simplify right side
    39,228.17x = 1,154,326,576.39
  5. Step 5: Solve for x
    x = 1,154,326,576.39/39,228.17
  6. Step 6: Final answer
    x = 29,425.96

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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.