Home / 42,418.78-63,628.20-14,716.78

Finding the Fourth Proportional to 42,418.78, 63,628.20 and 14,716.78

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Solution

The fourth proportional to 42,418.78, 63,628.20 and 14,716.78 is: 22,075.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,418.78 : 63,628.20 = 14,716.78 : x
  2. Step 2: Convert to fraction form
    42,418.78/63,628.20 = 14,716.78/x
  3. Step 3: Cross multiply
    42,418.78x = 63,628.20 × 14,716.78
  4. Step 4: Simplify right side
    42,418.78x = 936,402,221.20
  5. Step 5: Solve for x
    x = 936,402,221.20/42,418.78
  6. Step 6: Final answer
    x = 22,075.18

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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.