Home / 32,988.28-45,518.88-18,838.12

Finding the Fourth Proportional to 32,988.28, 45,518.88 and 18,838.12

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Solution

The fourth proportional to 32,988.28, 45,518.88 and 18,838.12 is: 25,993.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,988.28 : 45,518.88 = 18,838.12 : x
  2. Step 2: Convert to fraction form
    32,988.28/45,518.88 = 18,838.12/x
  3. Step 3: Cross multiply
    32,988.28x = 45,518.88 × 18,838.12
  4. Step 4: Simplify right side
    32,988.28x = 857,490,123.71
  5. Step 5: Solve for x
    x = 857,490,123.71/32,988.28
  6. Step 6: Final answer
    x = 25,993.78

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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.