Home / 42,630.12-63,945.18-13,047.84

Finding the Fourth Proportional to 42,630.12, 63,945.18 and 13,047.84

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Solution

The fourth proportional to 42,630.12, 63,945.18 and 13,047.84 is: 19,571.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,630.12 : 63,945.18 = 13,047.84 : x
  2. Step 2: Convert to fraction form
    42,630.12/63,945.18 = 13,047.84/x
  3. Step 3: Cross multiply
    42,630.12x = 63,945.18 × 13,047.84
  4. Step 4: Simplify right side
    42,630.12x = 834,346,477.41
  5. Step 5: Solve for x
    x = 834,346,477.41/42,630.12
  6. Step 6: Final answer
    x = 19,571.76

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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.