Home / 28,726.34-39,637.77-17,393.90

Finding the Fourth Proportional to 28,726.34, 39,637.77 and 17,393.90

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Solution

The fourth proportional to 28,726.34, 39,637.77 and 17,393.90 is: 24,000.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,726.34 : 39,637.77 = 17,393.90 : x
  2. Step 2: Convert to fraction form
    28,726.34/39,637.77 = 17,393.90/x
  3. Step 3: Cross multiply
    28,726.34x = 39,637.77 × 17,393.90
  4. Step 4: Simplify right side
    28,726.34x = 689,455,407.60
  5. Step 5: Solve for x
    x = 689,455,407.60/28,726.34
  6. Step 6: Final answer
    x = 24,000.81

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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.