Home / 19,947.79-27,537.92-15,461.47

Finding the Fourth Proportional to 19,947.79, 27,537.92 and 15,461.47

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Solution

The fourth proportional to 19,947.79, 27,537.92 and 15,461.47 is: 21,344.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,947.79 : 27,537.92 = 15,461.47 : x
  2. Step 2: Convert to fraction form
    19,947.79/27,537.92 = 15,461.47/x
  3. Step 3: Cross multiply
    19,947.79x = 27,537.92 × 15,461.47
  4. Step 4: Simplify right side
    19,947.79x = 425,776,723.94
  5. Step 5: Solve for x
    x = 425,776,723.94/19,947.79
  6. Step 6: Final answer
    x = 21,344.56

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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.