Home / 39,245.02-54,158.80-21,340.14

Finding the Fourth Proportional to 39,245.02, 54,158.80 and 21,340.14

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Solution

The fourth proportional to 39,245.02, 54,158.80 and 21,340.14 is: 29,449.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,245.02 : 54,158.80 = 21,340.14 : x
  2. Step 2: Convert to fraction form
    39,245.02/54,158.80 = 21,340.14/x
  3. Step 3: Cross multiply
    39,245.02x = 54,158.80 × 21,340.14
  4. Step 4: Simplify right side
    39,245.02x = 1,155,756,374.23
  5. Step 5: Solve for x
    x = 1,155,756,374.23/39,245.02
  6. Step 6: Final answer
    x = 29,449.76

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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.