Home / 29,275.90-40,400.84-15,847.31

Finding the Fourth Proportional to 29,275.90, 40,400.84 and 15,847.31

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Solution

The fourth proportional to 29,275.90, 40,400.84 and 15,847.31 is: 21,869.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,275.90 : 40,400.84 = 15,847.31 : x
  2. Step 2: Convert to fraction form
    29,275.90/40,400.84 = 15,847.31/x
  3. Step 3: Cross multiply
    29,275.90x = 40,400.84 × 15,847.31
  4. Step 4: Simplify right side
    29,275.90x = 640,244,776.36
  5. Step 5: Solve for x
    x = 640,244,776.36/29,275.90
  6. Step 6: Final answer
    x = 21,869.35

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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.