Home / 28,947.36-39,943.08-16,371.84

Finding the Fourth Proportional to 28,947.36, 39,943.08 and 16,371.84

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Solution

The fourth proportional to 28,947.36, 39,943.08 and 16,371.84 is: 22,590.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,947.36 : 39,943.08 = 16,371.84 : x
  2. Step 2: Convert to fraction form
    28,947.36/39,943.08 = 16,371.84/x
  3. Step 3: Cross multiply
    28,947.36x = 39,943.08 × 16,371.84
  4. Step 4: Simplify right side
    28,947.36x = 653,941,714.87
  5. Step 5: Solve for x
    x = 653,941,714.87/28,947.36
  6. Step 6: Final answer
    x = 22,590.72

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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.