Home / 22,122.39-30,527.06-12,688.95

Finding the Fourth Proportional to 22,122.39, 30,527.06 and 12,688.95

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Solution

The fourth proportional to 22,122.39, 30,527.06 and 12,688.95 is: 17,509.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,122.39 : 30,527.06 = 12,688.95 : x
  2. Step 2: Convert to fraction form
    22,122.39/30,527.06 = 12,688.95/x
  3. Step 3: Cross multiply
    22,122.39x = 30,527.06 × 12,688.95
  4. Step 4: Simplify right side
    22,122.39x = 387,356,274.54
  5. Step 5: Solve for x
    x = 387,356,274.54/22,122.39
  6. Step 6: Final answer
    x = 17,509.69

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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.