Home / 27,488.31-37,930.66-15,389.45

Finding the Fourth Proportional to 27,488.31, 37,930.66 and 15,389.45

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Solution

The fourth proportional to 27,488.31, 37,930.66 and 15,389.45 is: 21,235.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,488.31 : 37,930.66 = 15,389.45 : x
  2. Step 2: Convert to fraction form
    27,488.31/37,930.66 = 15,389.45/x
  3. Step 3: Cross multiply
    27,488.31x = 37,930.66 × 15,389.45
  4. Step 4: Simplify right side
    27,488.31x = 583,731,995.54
  5. Step 5: Solve for x
    x = 583,731,995.54/27,488.31
  6. Step 6: Final answer
    x = 21,235.65

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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.