Home / 20,464.16-28,240.40-11,632.16

Finding the Fourth Proportional to 20,464.16, 28,240.40 and 11,632.16

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Solution

The fourth proportional to 20,464.16, 28,240.40 and 11,632.16 is: 16,052.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,464.16 : 28,240.40 = 11,632.16 : x
  2. Step 2: Convert to fraction form
    20,464.16/28,240.40 = 11,632.16/x
  3. Step 3: Cross multiply
    20,464.16x = 28,240.40 × 11,632.16
  4. Step 4: Simplify right side
    20,464.16x = 328,496,851.26
  5. Step 5: Solve for x
    x = 328,496,851.26/20,464.16
  6. Step 6: Final answer
    x = 16,052.30

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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.