Home / 38,109.50-52,585.85-21,109.53

Finding the Fourth Proportional to 38,109.50, 52,585.85 and 21,109.53

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Solution

The fourth proportional to 38,109.50, 52,585.85 and 21,109.53 is: 29,128.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,109.50 : 52,585.85 = 21,109.53 : x
  2. Step 2: Convert to fraction form
    38,109.50/52,585.85 = 21,109.53/x
  3. Step 3: Cross multiply
    38,109.50x = 52,585.85 × 21,109.53
  4. Step 4: Simplify right side
    38,109.50x = 1,110,062,630.92
  5. Step 5: Solve for x
    x = 1,110,062,630.92/38,109.50
  6. Step 6: Final answer
    x = 29,128.24

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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.