Home / 39,443.54-54,429.90-21,534.98

Finding the Fourth Proportional to 39,443.54, 54,429.90 and 21,534.98

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Solution

The fourth proportional to 39,443.54, 54,429.90 and 21,534.98 is: 29,717.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,443.54 : 54,429.90 = 21,534.98 : x
  2. Step 2: Convert to fraction form
    39,443.54/54,429.90 = 21,534.98/x
  3. Step 3: Cross multiply
    39,443.54x = 54,429.90 × 21,534.98
  4. Step 4: Simplify right side
    39,443.54x = 1,172,146,807.90
  5. Step 5: Solve for x
    x = 1,172,146,807.90/39,443.54
  6. Step 6: Final answer
    x = 29,717.08

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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.