Home / 28,622.06-42,959.51-20,625.13

Finding the Fourth Proportional to 28,622.06, 42,959.51 and 20,625.13

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Solution

The fourth proportional to 28,622.06, 42,959.51 and 20,625.13 is: 30,956.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,622.06 : 42,959.51 = 20,625.13 : x
  2. Step 2: Convert to fraction form
    28,622.06/42,959.51 = 20,625.13/x
  3. Step 3: Cross multiply
    28,622.06x = 42,959.51 × 20,625.13
  4. Step 4: Simplify right side
    28,622.06x = 886,045,160.56
  5. Step 5: Solve for x
    x = 886,045,160.56/28,622.06
  6. Step 6: Final answer
    x = 30,956.73

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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.