Home / 27,858.38-38,444.24-15,111.32

Finding the Fourth Proportional to 27,858.38, 38,444.24 and 15,111.32

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Solution

The fourth proportional to 27,858.38, 38,444.24 and 15,111.32 is: 20,853.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,858.38 : 38,444.24 = 15,111.32 : x
  2. Step 2: Convert to fraction form
    27,858.38/38,444.24 = 15,111.32/x
  3. Step 3: Cross multiply
    27,858.38x = 38,444.24 × 15,111.32
  4. Step 4: Simplify right side
    27,858.38x = 580,943,346.69
  5. Step 5: Solve for x
    x = 580,943,346.69/27,858.38
  6. Step 6: Final answer
    x = 20,853.45

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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.