Home / 22,258.93-30,718.80-12,828.10

Finding the Fourth Proportional to 22,258.93, 30,718.80 and 12,828.10

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Solution

The fourth proportional to 22,258.93, 30,718.80 and 12,828.10 is: 17,703.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,258.93 : 30,718.80 = 12,828.10 : x
  2. Step 2: Convert to fraction form
    22,258.93/30,718.80 = 12,828.10/x
  3. Step 3: Cross multiply
    22,258.93x = 30,718.80 × 12,828.10
  4. Step 4: Simplify right side
    22,258.93x = 394,063,838.28
  5. Step 5: Solve for x
    x = 394,063,838.28/22,258.93
  6. Step 6: Final answer
    x = 17,703.63

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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.