Home / 20,001.95-27,602.64-11,505.71

Finding the Fourth Proportional to 20,001.95, 27,602.64 and 11,505.71

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Solution

The fourth proportional to 20,001.95, 27,602.64 and 11,505.71 is: 15,877.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,001.95 : 27,602.64 = 11,505.71 : x
  2. Step 2: Convert to fraction form
    20,001.95/27,602.64 = 11,505.71/x
  3. Step 3: Cross multiply
    20,001.95x = 27,602.64 × 11,505.71
  4. Step 4: Simplify right side
    20,001.95x = 317,588,040.08
  5. Step 5: Solve for x
    x = 317,588,040.08/20,001.95
  6. Step 6: Final answer
    x = 15,877.85

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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.