Home / 22,047.39-30,428.06-12,615.75

Finding the Fourth Proportional to 22,047.39, 30,428.06 and 12,615.75

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Solution

The fourth proportional to 22,047.39, 30,428.06 and 12,615.75 is: 17,411.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,047.39 : 30,428.06 = 12,615.75 : x
  2. Step 2: Convert to fraction form
    22,047.39/30,428.06 = 12,615.75/x
  3. Step 3: Cross multiply
    22,047.39x = 30,428.06 × 12,615.75
  4. Step 4: Simplify right side
    22,047.39x = 383,872,734.87
  5. Step 5: Solve for x
    x = 383,872,734.87/22,047.39
  6. Step 6: Final answer
    x = 17,411.26

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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.