Home / 42,639.93-63,987.57-19,266.57

Finding the Fourth Proportional to 42,639.93, 63,987.57 and 19,266.57

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Solution

The fourth proportional to 42,639.93, 63,987.57 and 19,266.57 is: 28,912.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,639.93 : 63,987.57 = 19,266.57 : x
  2. Step 2: Convert to fraction form
    42,639.93/63,987.57 = 19,266.57/x
  3. Step 3: Cross multiply
    42,639.93x = 63,987.57 × 19,266.57
  4. Step 4: Simplify right side
    42,639.93x = 1,232,820,996.53
  5. Step 5: Solve for x
    x = 1,232,820,996.53/42,639.93
  6. Step 6: Final answer
    x = 28,912.36

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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.