Home / 18,721.62-25,870.05-17,810.46

Finding the Fourth Proportional to 18,721.62, 25,870.05 and 17,810.46

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Solution

The fourth proportional to 18,721.62, 25,870.05 and 17,810.46 is: 24,610.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721.62 : 25,870.05 = 17,810.46 : x
  2. Step 2: Convert to fraction form
    18,721.62/25,870.05 = 17,810.46/x
  3. Step 3: Cross multiply
    18,721.62x = 25,870.05 × 17,810.46
  4. Step 4: Simplify right side
    18,721.62x = 460,757,490.72
  5. Step 5: Solve for x
    x = 460,757,490.72/18,721.62
  6. Step 6: Final answer
    x = 24,610.98

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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.