Home / 39,477.29-54,476.34-21,572.43

Finding the Fourth Proportional to 39,477.29, 54,476.34 and 21,572.43

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Solution

The fourth proportional to 39,477.29, 54,476.34 and 21,572.43 is: 29,768.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,477.29 : 54,476.34 = 21,572.43 : x
  2. Step 2: Convert to fraction form
    39,477.29/54,476.34 = 21,572.43/x
  3. Step 3: Cross multiply
    39,477.29x = 54,476.34 × 21,572.43
  4. Step 4: Simplify right side
    39,477.29x = 1,175,187,031.31
  5. Step 5: Solve for x
    x = 1,175,187,031.31/39,477.29
  6. Step 6: Final answer
    x = 29,768.69

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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.