Home / 28,371.54-39,146.77-16,434.16

Finding the Fourth Proportional to 28,371.54, 39,146.77 and 16,434.16

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Solution

The fourth proportional to 28,371.54, 39,146.77 and 16,434.16 is: 22,675.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,371.54 : 39,146.77 = 16,434.16 : x
  2. Step 2: Convert to fraction form
    28,371.54/39,146.77 = 16,434.16/x
  3. Step 3: Cross multiply
    28,371.54x = 39,146.77 × 16,434.16
  4. Step 4: Simplify right side
    28,371.54x = 643,344,281.66
  5. Step 5: Solve for x
    x = 643,344,281.66/28,371.54
  6. Step 6: Final answer
    x = 22,675.69

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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.