Home / 42,220.84-63,312.78-20,040.60

Finding the Fourth Proportional to 42,220.84, 63,312.78 and 20,040.60

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Solution

The fourth proportional to 42,220.84, 63,312.78 and 20,040.60 is: 30,052.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,220.84 : 63,312.78 = 20,040.60 : x
  2. Step 2: Convert to fraction form
    42,220.84/63,312.78 = 20,040.60/x
  3. Step 3: Cross multiply
    42,220.84x = 63,312.78 × 20,040.60
  4. Step 4: Simplify right side
    42,220.84x = 1,268,826,098.87
  5. Step 5: Solve for x
    x = 1,268,826,098.87/42,220.84
  6. Step 6: Final answer
    x = 30,052.13

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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.