Home / 22,346.87-33,509.97-12,989.55

Finding the Fourth Proportional to 22,346.87, 33,509.97 and 12,989.55

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Solution

The fourth proportional to 22,346.87, 33,509.97 and 12,989.55 is: 19,478.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,346.87 : 33,509.97 = 12,989.55 : x
  2. Step 2: Convert to fraction form
    22,346.87/33,509.97 = 12,989.55/x
  3. Step 3: Cross multiply
    22,346.87x = 33,509.97 × 12,989.55
  4. Step 4: Simplify right side
    22,346.87x = 435,279,430.81
  5. Step 5: Solve for x
    x = 435,279,430.81/22,346.87
  6. Step 6: Final answer
    x = 19,478.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.