Home / 28,238.10-39,009.11-22,565.40

Finding the Fourth Proportional to 28,238.10, 39,009.11 and 22,565.40

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Solution

The fourth proportional to 28,238.10, 39,009.11 and 22,565.40 is: 31,172.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,238.10 : 39,009.11 = 22,565.40 : x
  2. Step 2: Convert to fraction form
    28,238.10/39,009.11 = 22,565.40/x
  3. Step 3: Cross multiply
    28,238.10x = 39,009.11 × 22,565.40
  4. Step 4: Simplify right side
    28,238.10x = 880,256,170.79
  5. Step 5: Solve for x
    x = 880,256,170.79/28,238.10
  6. Step 6: Final answer
    x = 31,172.64

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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.