Home / 28,088.30-38,781.36-22,734.56

Finding the Fourth Proportional to 28,088.30, 38,781.36 and 22,734.56

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Solution

The fourth proportional to 28,088.30, 38,781.36 and 22,734.56 is: 31,389.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,088.30 : 38,781.36 = 22,734.56 : x
  2. Step 2: Convert to fraction form
    28,088.30/38,781.36 = 22,734.56/x
  3. Step 3: Cross multiply
    28,088.30x = 38,781.36 × 22,734.56
  4. Step 4: Simplify right side
    28,088.30x = 881,677,252.76
  5. Step 5: Solve for x
    x = 881,677,252.76/28,088.30
  6. Step 6: Final answer
    x = 31,389.48

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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.