Home / 45,013.24-67,518.41-13,423.57

Finding the Fourth Proportional to 45,013.24, 67,518.41 and 13,423.57

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Solution

The fourth proportional to 45,013.24, 67,518.41 and 13,423.57 is: 20,134.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,013.24 : 67,518.41 = 13,423.57 : x
  2. Step 2: Convert to fraction form
    45,013.24/67,518.41 = 13,423.57/x
  3. Step 3: Cross multiply
    45,013.24x = 67,518.41 × 13,423.57
  4. Step 4: Simplify right side
    45,013.24x = 906,337,937.52
  5. Step 5: Solve for x
    x = 906,337,937.52/45,013.24
  6. Step 6: Final answer
    x = 20,134.92

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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.