Home / 38,275.69-52,817.87-21,278.60

Finding the Fourth Proportional to 38,275.69, 52,817.87 and 21,278.60

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Solution

The fourth proportional to 38,275.69, 52,817.87 and 21,278.60 is: 29,363.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,275.69 : 52,817.87 = 21,278.60 : x
  2. Step 2: Convert to fraction form
    38,275.69/52,817.87 = 21,278.60/x
  3. Step 3: Cross multiply
    38,275.69x = 52,817.87 × 21,278.60
  4. Step 4: Simplify right side
    38,275.69x = 1,123,890,315.76
  5. Step 5: Solve for x
    x = 1,123,890,315.76/38,275.69
  6. Step 6: Final answer
    x = 29,363.03

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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.