Home / 31,058.79-42,868.80-17,637.90

Finding the Fourth Proportional to 31,058.79, 42,868.80 and 17,637.90

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Solution

The fourth proportional to 31,058.79, 42,868.80 and 17,637.90 is: 24,344.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,058.79 : 42,868.80 = 17,637.90 : x
  2. Step 2: Convert to fraction form
    31,058.79/42,868.80 = 17,637.90/x
  3. Step 3: Cross multiply
    31,058.79x = 42,868.80 × 17,637.90
  4. Step 4: Simplify right side
    31,058.79x = 756,115,607.52
  5. Step 5: Solve for x
    x = 756,115,607.52/31,058.79
  6. Step 6: Final answer
    x = 24,344.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.