Home / 32,876.76-45,357.18-20,937.96

Finding the Fourth Proportional to 32,876.76, 45,357.18 and 20,937.96

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Solution

The fourth proportional to 32,876.76, 45,357.18 and 20,937.96 is: 28,886.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,876.76 : 45,357.18 = 20,937.96 : x
  2. Step 2: Convert to fraction form
    32,876.76/45,357.18 = 20,937.96/x
  3. Step 3: Cross multiply
    32,876.76x = 45,357.18 × 20,937.96
  4. Step 4: Simplify right side
    32,876.76x = 949,686,820.55
  5. Step 5: Solve for x
    x = 949,686,820.55/32,876.76
  6. Step 6: Final answer
    x = 28,886.27

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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.