Home / 42,974.57-64,461.87-13,394.79

Finding the Fourth Proportional to 42,974.57, 64,461.87 and 13,394.79

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Solution

The fourth proportional to 42,974.57, 64,461.87 and 13,394.79 is: 20,092.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,974.57 : 64,461.87 = 13,394.79 : x
  2. Step 2: Convert to fraction form
    42,974.57/64,461.87 = 13,394.79/x
  3. Step 3: Cross multiply
    42,974.57x = 64,461.87 × 13,394.79
  4. Step 4: Simplify right side
    42,974.57x = 863,453,211.66
  5. Step 5: Solve for x
    x = 863,453,211.66/42,974.57
  6. Step 6: Final answer
    x = 20,092.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.