Home / 22,370.28-30,870.11-12,298.53

Finding the Fourth Proportional to 22,370.28, 30,870.11 and 12,298.53

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Solution

The fourth proportional to 22,370.28, 30,870.11 and 12,298.53 is: 16,971.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,370.28 : 30,870.11 = 12,298.53 : x
  2. Step 2: Convert to fraction form
    22,370.28/30,870.11 = 12,298.53/x
  3. Step 3: Cross multiply
    22,370.28x = 30,870.11 × 12,298.53
  4. Step 4: Simplify right side
    22,370.28x = 379,657,120.45
  5. Step 5: Solve for x
    x = 379,657,120.45/22,370.28
  6. Step 6: Final answer
    x = 16,971.50

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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.