Home / 38,955.60-53,755.56-21,962.52

Finding the Fourth Proportional to 38,955.60, 53,755.56 and 21,962.52

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Solution

The fourth proportional to 38,955.60, 53,755.56 and 21,962.52 is: 30,306.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,955.60 : 53,755.56 = 21,962.52 : x
  2. Step 2: Convert to fraction form
    38,955.60/53,755.56 = 21,962.52/x
  3. Step 3: Cross multiply
    38,955.60x = 53,755.56 × 21,962.52
  4. Step 4: Simplify right side
    38,955.60x = 1,180,607,561.61
  5. Step 5: Solve for x
    x = 1,180,607,561.61/38,955.60
  6. Step 6: Final answer
    x = 30,306.49

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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.