Home / 39,320.50-54,262.29-21,656.50

Finding the Fourth Proportional to 39,320.50, 54,262.29 and 21,656.50

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Solution

The fourth proportional to 39,320.50, 54,262.29 and 21,656.50 is: 29,885.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,320.50 : 54,262.29 = 21,656.50 : x
  2. Step 2: Convert to fraction form
    39,320.50/54,262.29 = 21,656.50/x
  3. Step 3: Cross multiply
    39,320.50x = 54,262.29 × 21,656.50
  4. Step 4: Simplify right side
    39,320.50x = 1,175,131,283.39
  5. Step 5: Solve for x
    x = 1,175,131,283.39/39,320.50
  6. Step 6: Final answer
    x = 29,885.97

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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.