Home / 28,047.61-38,705.84-15,472.36

Finding the Fourth Proportional to 28,047.61, 38,705.84 and 15,472.36

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Solution

The fourth proportional to 28,047.61, 38,705.84 and 15,472.36 is: 21,351.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,047.61 : 38,705.84 = 15,472.36 : x
  2. Step 2: Convert to fraction form
    28,047.61/38,705.84 = 15,472.36/x
  3. Step 3: Cross multiply
    28,047.61x = 38,705.84 × 15,472.36
  4. Step 4: Simplify right side
    28,047.61x = 598,870,690.58
  5. Step 5: Solve for x
    x = 598,870,690.58/28,047.61
  6. Step 6: Final answer
    x = 21,351.93

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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.