Home / 28,900.32-39,854.16-17,571.36

Finding the Fourth Proportional to 28,900.32, 39,854.16 and 17,571.36

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Solution

The fourth proportional to 28,900.32, 39,854.16 and 17,571.36 is: 24,231.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,900.32 : 39,854.16 = 17,571.36 : x
  2. Step 2: Convert to fraction form
    28,900.32/39,854.16 = 17,571.36/x
  3. Step 3: Cross multiply
    28,900.32x = 39,854.16 × 17,571.36
  4. Step 4: Simplify right side
    28,900.32x = 700,291,792.86
  5. Step 5: Solve for x
    x = 700,291,792.86/28,900.32
  6. Step 6: Final answer
    x = 24,231.28

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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.