Home / 22,187.90-30,622.38-12,756.26

Finding the Fourth Proportional to 22,187.90, 30,622.38 and 12,756.26

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Solution

The fourth proportional to 22,187.90, 30,622.38 and 12,756.26 is: 17,605.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,187.90 : 30,622.38 = 12,756.26 : x
  2. Step 2: Convert to fraction form
    22,187.90/30,622.38 = 12,756.26/x
  3. Step 3: Cross multiply
    22,187.90x = 30,622.38 × 12,756.26
  4. Step 4: Simplify right side
    22,187.90x = 390,627,041.10
  5. Step 5: Solve for x
    x = 390,627,041.10/22,187.90
  6. Step 6: Final answer
    x = 17,605.41

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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.