Home / 42,675.13-63,980.98-20,467.36

Finding the Fourth Proportional to 42,675.13, 63,980.98 and 20,467.36

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Solution

The fourth proportional to 42,675.13, 63,980.98 and 20,467.36 is: 30,685.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,675.13 : 63,980.98 = 20,467.36 : x
  2. Step 2: Convert to fraction form
    42,675.13/63,980.98 = 20,467.36/x
  3. Step 3: Cross multiply
    42,675.13x = 63,980.98 × 20,467.36
  4. Step 4: Simplify right side
    42,675.13x = 1,309,521,750.81
  5. Step 5: Solve for x
    x = 1,309,521,750.81/42,675.13
  6. Step 6: Final answer
    x = 30,685.83

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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.