Home / 20,040.61-27,656.48-11,088.74

Finding the Fourth Proportional to 20,040.61, 27,656.48 and 11,088.74

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Solution

The fourth proportional to 20,040.61, 27,656.48 and 11,088.74 is: 15,302.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,040.61 : 27,656.48 = 11,088.74 : x
  2. Step 2: Convert to fraction form
    20,040.61/27,656.48 = 11,088.74/x
  3. Step 3: Cross multiply
    20,040.61x = 27,656.48 × 11,088.74
  4. Step 4: Simplify right side
    20,040.61x = 306,675,516.04
  5. Step 5: Solve for x
    x = 306,675,516.04/20,040.61
  6. Step 6: Final answer
    x = 15,302.70

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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.