Home / 32,685.12-45,108-18,538.56

Finding the Fourth Proportional to 32,685.12, 45,108 and 18,538.56

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Solution

The fourth proportional to 32,685.12, 45,108 and 18,538.56 is: 25,584.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,685.12 : 45,108 = 18,538.56 : x
  2. Step 2: Convert to fraction form
    32,685.12/45,108 = 18,538.56/x
  3. Step 3: Cross multiply
    32,685.12x = 45,108 × 18,538.56
  4. Step 4: Simplify right side
    32,685.12x = 836,237,364.48
  5. Step 5: Solve for x
    x = 836,237,364.48/32,685.12
  6. Step 6: Final answer
    x = 25,584.65

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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.