Home / 42,127.71-63,142.97-15,815.67

Finding the Fourth Proportional to 42,127.71, 63,142.97 and 15,815.67

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Solution

The fourth proportional to 42,127.71, 63,142.97 and 15,815.67 is: 23,705.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,127.71 : 63,142.97 = 15,815.67 : x
  2. Step 2: Convert to fraction form
    42,127.71/63,142.97 = 15,815.67/x
  3. Step 3: Cross multiply
    42,127.71x = 63,142.97 × 15,815.67
  4. Step 4: Simplify right side
    42,127.71x = 998,648,297.26
  5. Step 5: Solve for x
    x = 998,648,297.26/42,127.71
  6. Step 6: Final answer
    x = 23,705.26

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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.