Home / 22,277.50-30,742.95-13,325.38

Finding the Fourth Proportional to 22,277.50, 30,742.95 and 13,325.38

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Solution

The fourth proportional to 22,277.50, 30,742.95 and 13,325.38 is: 18,389.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,277.50 : 30,742.95 = 13,325.38 : x
  2. Step 2: Convert to fraction form
    22,277.50/30,742.95 = 13,325.38/x
  3. Step 3: Cross multiply
    22,277.50x = 30,742.95 × 13,325.38
  4. Step 4: Simplify right side
    22,277.50x = 409,661,491.07
  5. Step 5: Solve for x
    x = 409,661,491.07/22,277.50
  6. Step 6: Final answer
    x = 18,389.02

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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.