Home / 22,315.14-30,792.69-12,886.74

Finding the Fourth Proportional to 22,315.14, 30,792.69 and 12,886.74

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Solution

The fourth proportional to 22,315.14, 30,792.69 and 12,886.74 is: 17,782.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,315.14 : 30,792.69 = 12,886.74 : x
  2. Step 2: Convert to fraction form
    22,315.14/30,792.69 = 12,886.74/x
  3. Step 3: Cross multiply
    22,315.14x = 30,792.69 × 12,886.74
  4. Step 4: Simplify right side
    22,315.14x = 396,817,389.93
  5. Step 5: Solve for x
    x = 396,817,389.93/22,315.14
  6. Step 6: Final answer
    x = 17,782.43

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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.