Home / 27,278.12-37,643.45-15,341.46

Finding the Fourth Proportional to 27,278.12, 37,643.45 and 15,341.46

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Solution

The fourth proportional to 27,278.12, 37,643.45 and 15,341.46 is: 21,171.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,278.12 : 37,643.45 = 15,341.46 : x
  2. Step 2: Convert to fraction form
    27,278.12/37,643.45 = 15,341.46/x
  3. Step 3: Cross multiply
    27,278.12x = 37,643.45 × 15,341.46
  4. Step 4: Simplify right side
    27,278.12x = 577,505,562.61
  5. Step 5: Solve for x
    x = 577,505,562.61/27,278.12
  6. Step 6: Final answer
    x = 21,171.02

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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.