Home / 38,132.89-52,627.05-21,140.80

Finding the Fourth Proportional to 38,132.89, 52,627.05 and 21,140.80

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Solution

The fourth proportional to 38,132.89, 52,627.05 and 21,140.80 is: 29,176.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,132.89 : 52,627.05 = 21,140.80 : x
  2. Step 2: Convert to fraction form
    38,132.89/52,627.05 = 21,140.80/x
  3. Step 3: Cross multiply
    38,132.89x = 52,627.05 × 21,140.80
  4. Step 4: Simplify right side
    38,132.89x = 1,112,577,807.07
  5. Step 5: Solve for x
    x = 1,112,577,807.07/38,132.89
  6. Step 6: Final answer
    x = 29,176.33

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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.