Home / 28,865.73-43,264.98-12,220.23

Finding the Fourth Proportional to 28,865.73, 43,264.98 and 12,220.23

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Solution

The fourth proportional to 28,865.73, 43,264.98 and 12,220.23 is: 18,316.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,865.73 : 43,264.98 = 12,220.23 : x
  2. Step 2: Convert to fraction form
    28,865.73/43,264.98 = 12,220.23/x
  3. Step 3: Cross multiply
    28,865.73x = 43,264.98 × 12,220.23
  4. Step 4: Simplify right side
    28,865.73x = 528,708,006.55
  5. Step 5: Solve for x
    x = 528,708,006.55/28,865.73
  6. Step 6: Final answer
    x = 18,316.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.