Home / 42,039.84-63,070.80-15,744.96

Finding the Fourth Proportional to 42,039.84, 63,070.80 and 15,744.96

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Solution

The fourth proportional to 42,039.84, 63,070.80 and 15,744.96 is: 23,621.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,039.84 : 63,070.80 = 15,744.96 : x
  2. Step 2: Convert to fraction form
    42,039.84/63,070.80 = 15,744.96/x
  3. Step 3: Cross multiply
    42,039.84x = 63,070.80 × 15,744.96
  4. Step 4: Simplify right side
    42,039.84x = 993,047,223.17
  5. Step 5: Solve for x
    x = 993,047,223.17/42,039.84
  6. Step 6: Final answer
    x = 23,621.57

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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.