Home / 40,903.11-61,354.77-12,440.31

Finding the Fourth Proportional to 40,903.11, 61,354.77 and 12,440.31

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Solution

The fourth proportional to 40,903.11, 61,354.77 and 12,440.31 is: 18,660.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,903.11 : 61,354.77 = 12,440.31 : x
  2. Step 2: Convert to fraction form
    40,903.11/61,354.77 = 12,440.31/x
  3. Step 3: Cross multiply
    40,903.11x = 61,354.77 × 12,440.31
  4. Step 4: Simplify right side
    40,903.11x = 763,272,358.78
  5. Step 5: Solve for x
    x = 763,272,358.78/40,903.11
  6. Step 6: Final answer
    x = 18,660.50

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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.