Home / 23,211.81-32,020.65-15,648.57

Finding the Fourth Proportional to 23,211.81, 32,020.65 and 15,648.57

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Solution

The fourth proportional to 23,211.81, 32,020.65 and 15,648.57 is: 21,587.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,211.81 : 32,020.65 = 15,648.57 : x
  2. Step 2: Convert to fraction form
    23,211.81/32,020.65 = 15,648.57/x
  3. Step 3: Cross multiply
    23,211.81x = 32,020.65 × 15,648.57
  4. Step 4: Simplify right side
    23,211.81x = 501,077,382.97
  5. Step 5: Solve for x
    x = 501,077,382.97/23,211.81
  6. Step 6: Final answer
    x = 21,587.17

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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.