Home / 42,283.68-63,426.80-12,701.60

Finding the Fourth Proportional to 42,283.68, 63,426.80 and 12,701.60

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Solution

The fourth proportional to 42,283.68, 63,426.80 and 12,701.60 is: 19,052.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,283.68 : 63,426.80 = 12,701.60 : x
  2. Step 2: Convert to fraction form
    42,283.68/63,426.80 = 12,701.60/x
  3. Step 3: Cross multiply
    42,283.68x = 63,426.80 × 12,701.60
  4. Step 4: Simplify right side
    42,283.68x = 805,621,842.88
  5. Step 5: Solve for x
    x = 805,621,842.88/42,283.68
  6. Step 6: Final answer
    x = 19,052.78

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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.