Home / 32,689.32-48,987.20-18,620.30

Finding the Fourth Proportional to 32,689.32, 48,987.20 and 18,620.30

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Solution

The fourth proportional to 32,689.32, 48,987.20 and 18,620.30 is: 27,903.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,689.32 : 48,987.20 = 18,620.30 : x
  2. Step 2: Convert to fraction form
    32,689.32/48,987.20 = 18,620.30/x
  3. Step 3: Cross multiply
    32,689.32x = 48,987.20 × 18,620.30
  4. Step 4: Simplify right side
    32,689.32x = 912,156,267.06
  5. Step 5: Solve for x
    x = 912,156,267.06/32,689.32
  6. Step 6: Final answer
    x = 27,903.80

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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.