Home / 42,315.25-63,475.94-14,235.18

Finding the Fourth Proportional to 42,315.25, 63,475.94 and 14,235.18

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Solution

The fourth proportional to 42,315.25, 63,475.94 and 14,235.18 is: 21,353.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,315.25 : 63,475.94 = 14,235.18 : x
  2. Step 2: Convert to fraction form
    42,315.25/63,475.94 = 14,235.18/x
  3. Step 3: Cross multiply
    42,315.25x = 63,475.94 × 14,235.18
  4. Step 4: Simplify right side
    42,315.25x = 903,591,431.57
  5. Step 5: Solve for x
    x = 903,591,431.57/42,315.25
  6. Step 6: Final answer
    x = 21,353.80

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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.