Home / 35,487.57-48,970.73-20,382.69

Finding the Fourth Proportional to 35,487.57, 48,970.73 and 20,382.69

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Solution

The fourth proportional to 35,487.57, 48,970.73 and 20,382.69 is: 28,126.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,487.57 : 48,970.73 = 20,382.69 : x
  2. Step 2: Convert to fraction form
    35,487.57/48,970.73 = 20,382.69/x
  3. Step 3: Cross multiply
    35,487.57x = 48,970.73 × 20,382.69
  4. Step 4: Simplify right side
    35,487.57x = 998,155,259.62
  5. Step 5: Solve for x
    x = 998,155,259.62/35,487.57
  6. Step 6: Final answer
    x = 28,126.90

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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.