Home / 39,275.72-54,200.46-21,370.70

Finding the Fourth Proportional to 39,275.72, 54,200.46 and 21,370.70

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Solution

The fourth proportional to 39,275.72, 54,200.46 and 21,370.70 is: 29,491.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,275.72 : 54,200.46 = 21,370.70 : x
  2. Step 2: Convert to fraction form
    39,275.72/54,200.46 = 21,370.70/x
  3. Step 3: Cross multiply
    39,275.72x = 54,200.46 × 21,370.70
  4. Step 4: Simplify right side
    39,275.72x = 1,158,301,770.52
  5. Step 5: Solve for x
    x = 1,158,301,770.52/39,275.72
  6. Step 6: Final answer
    x = 29,491.55

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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.