Home / 28,417.61-39,215.39-15,671.33

Finding the Fourth Proportional to 28,417.61, 39,215.39 and 15,671.33

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Solution

The fourth proportional to 28,417.61, 39,215.39 and 15,671.33 is: 21,625.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,417.61 : 39,215.39 = 15,671.33 : x
  2. Step 2: Convert to fraction form
    28,417.61/39,215.39 = 15,671.33/x
  3. Step 3: Cross multiply
    28,417.61x = 39,215.39 × 15,671.33
  4. Step 4: Simplify right side
    28,417.61x = 614,557,160.87
  5. Step 5: Solve for x
    x = 614,557,160.87/28,417.61
  6. Step 6: Final answer
    x = 21,625.93

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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.