Home / 22,258.89-30,718.05-12,187.41

Finding the Fourth Proportional to 22,258.89, 30,718.05 and 12,187.41

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Solution

The fourth proportional to 22,258.89, 30,718.05 and 12,187.41 is: 16,819.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,258.89 : 30,718.05 = 12,187.41 : x
  2. Step 2: Convert to fraction form
    22,258.89/30,718.05 = 12,187.41/x
  3. Step 3: Cross multiply
    22,258.89x = 30,718.05 × 12,187.41
  4. Step 4: Simplify right side
    22,258.89x = 374,373,408.81
  5. Step 5: Solve for x
    x = 374,373,408.81/22,258.89
  6. Step 6: Final answer
    x = 16,819.05

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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.