Home / 29,297.27-40,430.31-15,868.55

Finding the Fourth Proportional to 29,297.27, 40,430.31 and 15,868.55

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Solution

The fourth proportional to 29,297.27, 40,430.31 and 15,868.55 is: 21,898.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,297.27 : 40,430.31 = 15,868.55 : x
  2. Step 2: Convert to fraction form
    29,297.27/40,430.31 = 15,868.55/x
  3. Step 3: Cross multiply
    29,297.27x = 40,430.31 × 15,868.55
  4. Step 4: Simplify right side
    29,297.27x = 641,570,395.75
  5. Step 5: Solve for x
    x = 641,570,395.75/29,297.27
  6. Step 6: Final answer
    x = 21,898.64

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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.