Home / 28,220.06-38,941.79-16,283.90

Finding the Fourth Proportional to 28,220.06, 38,941.79 and 16,283.90

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Solution

The fourth proportional to 28,220.06, 38,941.79 and 16,283.90 is: 22,470.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,220.06 : 38,941.79 = 16,283.90 : x
  2. Step 2: Convert to fraction form
    28,220.06/38,941.79 = 16,283.90/x
  3. Step 3: Cross multiply
    28,220.06x = 38,941.79 × 16,283.90
  4. Step 4: Simplify right side
    28,220.06x = 634,124,214.18
  5. Step 5: Solve for x
    x = 634,124,214.18/28,220.06
  6. Step 6: Final answer
    x = 22,470.69

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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.