Home / 27,427.12-37,849.15-15,490.20

Finding the Fourth Proportional to 27,427.12, 37,849.15 and 15,490.20

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Solution

The fourth proportional to 27,427.12, 37,849.15 and 15,490.20 is: 21,376.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,427.12 : 37,849.15 = 15,490.20 : x
  2. Step 2: Convert to fraction form
    27,427.12/37,849.15 = 15,490.20/x
  3. Step 3: Cross multiply
    27,427.12x = 37,849.15 × 15,490.20
  4. Step 4: Simplify right side
    27,427.12x = 586,290,903.33
  5. Step 5: Solve for x
    x = 586,290,903.33/27,427.12
  6. Step 6: Final answer
    x = 21,376.32

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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.