Home / 42,684.26-63,994.67-20,476.49

Finding the Fourth Proportional to 42,684.26, 63,994.67 and 20,476.49

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Solution

The fourth proportional to 42,684.26, 63,994.67 and 20,476.49 is: 30,699.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,684.26 : 63,994.67 = 20,476.49 : x
  2. Step 2: Convert to fraction form
    42,684.26/63,994.67 = 20,476.49/x
  3. Step 3: Cross multiply
    42,684.26x = 63,994.67 × 20,476.49
  4. Step 4: Simplify right side
    42,684.26x = 1,310,386,220.31
  5. Step 5: Solve for x
    x = 1,310,386,220.31/42,684.26
  6. Step 6: Final answer
    x = 30,699.52

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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.