Home / 28,062.33-38,726.25-15,315.62

Finding the Fourth Proportional to 28,062.33, 38,726.25 and 15,315.62

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Solution

The fourth proportional to 28,062.33, 38,726.25 and 15,315.62 is: 21,135.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,062.33 : 38,726.25 = 15,315.62 : x
  2. Step 2: Convert to fraction form
    28,062.33/38,726.25 = 15,315.62/x
  3. Step 3: Cross multiply
    28,062.33x = 38,726.25 × 15,315.62
  4. Step 4: Simplify right side
    28,062.33x = 593,116,335.39
  5. Step 5: Solve for x
    x = 593,116,335.39/28,062.33
  6. Step 6: Final answer
    x = 21,135.68

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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.