Home / 27,278.04-37,643.31-15,341.37

Finding the Fourth Proportional to 27,278.04, 37,643.31 and 15,341.37

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Solution

The fourth proportional to 27,278.04, 37,643.31 and 15,341.37 is: 21,170.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,278.04 : 37,643.31 = 15,341.37 : x
  2. Step 2: Convert to fraction form
    27,278.04/37,643.31 = 15,341.37/x
  3. Step 3: Cross multiply
    27,278.04x = 37,643.31 × 15,341.37
  4. Step 4: Simplify right side
    27,278.04x = 577,499,946.73
  5. Step 5: Solve for x
    x = 577,499,946.73/27,278.04
  6. Step 6: Final answer
    x = 21,170.87

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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.