Home / 29,587.54-40,761.36-20,618.74

Finding the Fourth Proportional to 29,587.54, 40,761.36 and 20,618.74

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Solution

The fourth proportional to 29,587.54, 40,761.36 and 20,618.74 is: 28,405.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,587.54 : 40,761.36 = 20,618.74 : x
  2. Step 2: Convert to fraction form
    29,587.54/40,761.36 = 20,618.74/x
  3. Step 3: Cross multiply
    29,587.54x = 40,761.36 × 20,618.74
  4. Step 4: Simplify right side
    29,587.54x = 840,447,883.89
  5. Step 5: Solve for x
    x = 840,447,883.89/29,587.54
  6. Step 6: Final answer
    x = 28,405.47

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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.