Home / 27,886.09-38,471.85-15,943.02

Finding the Fourth Proportional to 27,886.09, 38,471.85 and 15,943.02

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Solution

The fourth proportional to 27,886.09, 38,471.85 and 15,943.02 is: 21,995.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,886.09 : 38,471.85 = 15,943.02 : x
  2. Step 2: Convert to fraction form
    27,886.09/38,471.85 = 15,943.02/x
  3. Step 3: Cross multiply
    27,886.09x = 38,471.85 × 15,943.02
  4. Step 4: Simplify right side
    27,886.09x = 613,357,473.99
  5. Step 5: Solve for x
    x = 613,357,473.99/27,886.09
  6. Step 6: Final answer
    x = 21,995.10

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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.