Home / 39,352.57-54,306.21-21,447.57

Finding the Fourth Proportional to 39,352.57, 54,306.21 and 21,447.57

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Solution

The fourth proportional to 39,352.57, 54,306.21 and 21,447.57 is: 29,597.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,352.57 : 54,306.21 = 21,447.57 : x
  2. Step 2: Convert to fraction form
    39,352.57/54,306.21 = 21,447.57/x
  3. Step 3: Cross multiply
    39,352.57x = 54,306.21 × 21,447.57
  4. Step 4: Simplify right side
    39,352.57x = 1,164,736,363.63
  5. Step 5: Solve for x
    x = 1,164,736,363.63/39,352.57
  6. Step 6: Final answer
    x = 29,597.47

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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.