Home / 28,959.08-39,963.72-16,386.32

Finding the Fourth Proportional to 28,959.08, 39,963.72 and 16,386.32

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Solution

The fourth proportional to 28,959.08, 39,963.72 and 16,386.32 is: 22,613.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,959.08 : 39,963.72 = 16,386.32 : x
  2. Step 2: Convert to fraction form
    28,959.08/39,963.72 = 16,386.32/x
  3. Step 3: Cross multiply
    28,959.08x = 39,963.72 × 16,386.32
  4. Step 4: Simplify right side
    28,959.08x = 654,858,304.31
  5. Step 5: Solve for x
    x = 654,858,304.31/28,959.08
  6. Step 6: Final answer
    x = 22,613.23

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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.