Home / 27,140.10-37,442.79-15,807.66

Finding the Fourth Proportional to 27,140.10, 37,442.79 and 15,807.66

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Solution

The fourth proportional to 27,140.10, 37,442.79 and 15,807.66 is: 21,808.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,140.10 : 37,442.79 = 15,807.66 : x
  2. Step 2: Convert to fraction form
    27,140.10/37,442.79 = 15,807.66/x
  3. Step 3: Cross multiply
    27,140.10x = 37,442.79 × 15,807.66
  4. Step 4: Simplify right side
    27,140.10x = 591,882,893.77
  5. Step 5: Solve for x
    x = 591,882,893.77/27,140.10
  6. Step 6: Final answer
    x = 21,808.43

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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.