Home / 39,130.31-54,000.79-22,133.72

Finding the Fourth Proportional to 39,130.31, 54,000.79 and 22,133.72

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Solution

The fourth proportional to 39,130.31, 54,000.79 and 22,133.72 is: 30,545.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,130.31 : 54,000.79 = 22,133.72 : x
  2. Step 2: Convert to fraction form
    39,130.31/54,000.79 = 22,133.72/x
  3. Step 3: Cross multiply
    39,130.31x = 54,000.79 × 22,133.72
  4. Step 4: Simplify right side
    39,130.31x = 1,195,238,569.81
  5. Step 5: Solve for x
    x = 1,195,238,569.81/39,130.31
  6. Step 6: Final answer
    x = 30,545.09

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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.