Home / 32,811.84-45,279.36-18,666.72

Finding the Fourth Proportional to 32,811.84, 45,279.36 and 18,666.72

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Solution

The fourth proportional to 32,811.84, 45,279.36 and 18,666.72 is: 25,759.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,811.84 : 45,279.36 = 18,666.72 : x
  2. Step 2: Convert to fraction form
    32,811.84/45,279.36 = 18,666.72/x
  3. Step 3: Cross multiply
    32,811.84x = 45,279.36 × 18,666.72
  4. Step 4: Simplify right side
    32,811.84x = 845,217,134.90
  5. Step 5: Solve for x
    x = 845,217,134.90/32,811.84
  6. Step 6: Final answer
    x = 25,759.52

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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.