Home / 42,721.04-64,081.56-16,438.16

Finding the Fourth Proportional to 42,721.04, 64,081.56 and 16,438.16

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Solution

The fourth proportional to 42,721.04, 64,081.56 and 16,438.16 is: 24,657.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,721.04 : 64,081.56 = 16,438.16 : x
  2. Step 2: Convert to fraction form
    42,721.04/64,081.56 = 16,438.16/x
  3. Step 3: Cross multiply
    42,721.04x = 64,081.56 × 16,438.16
  4. Step 4: Simplify right side
    42,721.04x = 1,053,382,936.33
  5. Step 5: Solve for x
    x = 1,053,382,936.33/42,721.04
  6. Step 6: Final answer
    x = 24,657.24

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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.