Home / 42,270.23-63,415.35-13,807.04

Finding the Fourth Proportional to 42,270.23, 63,415.35 and 13,807.04

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Solution

The fourth proportional to 42,270.23, 63,415.35 and 13,807.04 is: 20,713.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,270.23 : 63,415.35 = 13,807.04 : x
  2. Step 2: Convert to fraction form
    42,270.23/63,415.35 = 13,807.04/x
  3. Step 3: Cross multiply
    42,270.23x = 63,415.35 × 13,807.04
  4. Step 4: Simplify right side
    42,270.23x = 875,578,274.06
  5. Step 5: Solve for x
    x = 875,578,274.06/42,270.23
  6. Step 6: Final answer
    x = 20,713.83

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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.