Home / 42,257.40-63,386.04-12,675.18

Finding the Fourth Proportional to 42,257.40, 63,386.04 and 12,675.18

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Solution

The fourth proportional to 42,257.40, 63,386.04 and 12,675.18 is: 19,012.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,257.40 : 63,386.04 = 12,675.18 : x
  2. Step 2: Convert to fraction form
    42,257.40/63,386.04 = 12,675.18/x
  3. Step 3: Cross multiply
    42,257.40x = 63,386.04 × 12,675.18
  4. Step 4: Simplify right side
    42,257.40x = 803,429,751.72
  5. Step 5: Solve for x
    x = 803,429,751.72/42,257.40
  6. Step 6: Final answer
    x = 19,012.76

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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.