Home / 32,728.40-45,165.24-18,581.25

Finding the Fourth Proportional to 32,728.40, 45,165.24 and 18,581.25

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Solution

The fourth proportional to 32,728.40, 45,165.24 and 18,581.25 is: 25,642.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,728.40 : 45,165.24 = 18,581.25 : x
  2. Step 2: Convert to fraction form
    32,728.40/45,165.24 = 18,581.25/x
  3. Step 3: Cross multiply
    32,728.40x = 45,165.24 × 18,581.25
  4. Step 4: Simplify right side
    32,728.40x = 839,226,615.75
  5. Step 5: Solve for x
    x = 839,226,615.75/32,728.40
  6. Step 6: Final answer
    x = 25,642.15

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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.