Home / 28,829.93-39,726.25-21,264.27

Finding the Fourth Proportional to 28,829.93, 39,726.25 and 21,264.27

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Solution

The fourth proportional to 28,829.93, 39,726.25 and 21,264.27 is: 29,301.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,829.93 : 39,726.25 = 21,264.27 : x
  2. Step 2: Convert to fraction form
    28,829.93/39,726.25 = 21,264.27/x
  3. Step 3: Cross multiply
    28,829.93x = 39,726.25 × 21,264.27
  4. Step 4: Simplify right side
    28,829.93x = 844,749,727.41
  5. Step 5: Solve for x
    x = 844,749,727.41/28,829.93
  6. Step 6: Final answer
    x = 29,301.14

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1.5x scale

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.