Home / 32,891.58-45,405.18-20,970.90

Finding the Fourth Proportional to 32,891.58, 45,405.18 and 20,970.90

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Solution

The fourth proportional to 32,891.58, 45,405.18 and 20,970.90 is: 28,949.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,891.58 : 45,405.18 = 20,970.90 : x
  2. Step 2: Convert to fraction form
    32,891.58/45,405.18 = 20,970.90/x
  3. Step 3: Cross multiply
    32,891.58x = 45,405.18 × 20,970.90
  4. Step 4: Simplify right side
    32,891.58x = 952,187,489.26
  5. Step 5: Solve for x
    x = 952,187,489.26/32,891.58
  6. Step 6: Final answer
    x = 28,949.28

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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.