Home / 40,862.91-61,294.46-12,783.15

Finding the Fourth Proportional to 40,862.91, 61,294.46 and 12,783.15

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Solution

The fourth proportional to 40,862.91, 61,294.46 and 12,783.15 is: 19,174.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,862.91 : 61,294.46 = 12,783.15 : x
  2. Step 2: Convert to fraction form
    40,862.91/61,294.46 = 12,783.15/x
  3. Step 3: Cross multiply
    40,862.91x = 61,294.46 × 12,783.15
  4. Step 4: Simplify right side
    40,862.91x = 783,536,212.43
  5. Step 5: Solve for x
    x = 783,536,212.43/40,862.91
  6. Step 6: Final answer
    x = 19,174.75

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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.