Home / 70,923.20-106,400.33-21,007.15

Finding the Fourth Proportional to 70,923.20, 106,400.33 and 21,007.15

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Solution

The fourth proportional to 70,923.20, 106,400.33 and 21,007.15 is: 31,515.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,923.20 : 106,400.33 = 21,007.15 : x
  2. Step 2: Convert to fraction form
    70,923.20/106,400.33 = 21,007.15/x
  3. Step 3: Cross multiply
    70,923.20x = 106,400.33 × 21,007.15
  4. Step 4: Simplify right side
    70,923.20x = 2,235,167,518.26
  5. Step 5: Solve for x
    x = 2,235,167,518.26/70,923.20
  6. Step 6: Final answer
    x = 31,515.32

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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.