Home / 28,250.60-42,327.30-18,384.80

Finding the Fourth Proportional to 28,250.60, 42,327.30 and 18,384.80

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Solution

The fourth proportional to 28,250.60, 42,327.30 and 18,384.80 is: 27,545.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,250.60 : 42,327.30 = 18,384.80 : x
  2. Step 2: Convert to fraction form
    28,250.60/42,327.30 = 18,384.80/x
  3. Step 3: Cross multiply
    28,250.60x = 42,327.30 × 18,384.80
  4. Step 4: Simplify right side
    28,250.60x = 778,178,945.04
  5. Step 5: Solve for x
    x = 778,178,945.04/28,250.60
  6. Step 6: Final answer
    x = 27,545.57

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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.