Home / 22,309.15-30,788.19-12,750.45

Finding the Fourth Proportional to 22,309.15, 30,788.19 and 12,750.45

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Solution

The fourth proportional to 22,309.15, 30,788.19 and 12,750.45 is: 17,596.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,309.15 : 30,788.19 = 12,750.45 : x
  2. Step 2: Convert to fraction form
    22,309.15/30,788.19 = 12,750.45/x
  3. Step 3: Cross multiply
    22,309.15x = 30,788.19 × 12,750.45
  4. Step 4: Simplify right side
    22,309.15x = 392,563,277.19
  5. Step 5: Solve for x
    x = 392,563,277.19/22,309.15
  6. Step 6: Final answer
    x = 17,596.51

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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.