Home / 20,040.48-27,665.28-13,337.10

Finding the Fourth Proportional to 20,040.48, 27,665.28 and 13,337.10

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Solution

The fourth proportional to 20,040.48, 27,665.28 and 13,337.10 is: 18,411.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,040.48 : 27,665.28 = 13,337.10 : x
  2. Step 2: Convert to fraction form
    20,040.48/27,665.28 = 13,337.10/x
  3. Step 3: Cross multiply
    20,040.48x = 27,665.28 × 13,337.10
  4. Step 4: Simplify right side
    20,040.48x = 368,974,605.89
  5. Step 5: Solve for x
    x = 368,974,605.89/20,040.48
  6. Step 6: Final answer
    x = 18,411.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.