Home / 38,927.97-58,178.61-28,420.11

Finding the Fourth Proportional to 38,927.97, 58,178.61 and 28,420.11

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Solution

The fourth proportional to 38,927.97, 58,178.61 and 28,420.11 is: 42,474.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,927.97 : 58,178.61 = 28,420.11 : x
  2. Step 2: Convert to fraction form
    38,927.97/58,178.61 = 28,420.11/x
  3. Step 3: Cross multiply
    38,927.97x = 58,178.61 × 28,420.11
  4. Step 4: Simplify right side
    38,927.97x = 1,653,442,495.85
  5. Step 5: Solve for x
    x = 1,653,442,495.85/38,927.97
  6. Step 6: Final answer
    x = 42,474.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.