Home / 30,543.60-45,799.20-10,822.80

Finding the Fourth Proportional to 30,543.60, 45,799.20 and 10,822.80

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Solution

The fourth proportional to 30,543.60, 45,799.20 and 10,822.80 is: 16,228.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,543.60 : 45,799.20 = 10,822.80 : x
  2. Step 2: Convert to fraction form
    30,543.60/45,799.20 = 10,822.80/x
  3. Step 3: Cross multiply
    30,543.60x = 45,799.20 × 10,822.80
  4. Step 4: Simplify right side
    30,543.60x = 495,675,581.76
  5. Step 5: Solve for x
    x = 495,675,581.76/30,543.60
  6. Step 6: Final answer
    x = 16,228.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.