Home / 38,376.23-52,955.57-21,378.74

Finding the Fourth Proportional to 38,376.23, 52,955.57 and 21,378.74

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Solution

The fourth proportional to 38,376.23, 52,955.57 and 21,378.74 is: 29,500.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,376.23 : 52,955.57 = 21,378.74 : x
  2. Step 2: Convert to fraction form
    38,376.23/52,955.57 = 21,378.74/x
  3. Step 3: Cross multiply
    38,376.23x = 52,955.57 × 21,378.74
  4. Step 4: Simplify right side
    38,376.23x = 1,132,123,151.25
  5. Step 5: Solve for x
    x = 1,132,123,151.25/38,376.23
  6. Step 6: Final answer
    x = 29,500.64

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Double scale
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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.