Home / 19,670.20-29,470.31-11,332.99

Finding the Fourth Proportional to 19,670.20, 29,470.31 and 11,332.99

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Solution

The fourth proportional to 19,670.20, 29,470.31 and 11,332.99 is: 16,979.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,670.20 : 29,470.31 = 11,332.99 : x
  2. Step 2: Convert to fraction form
    19,670.20/29,470.31 = 11,332.99/x
  3. Step 3: Cross multiply
    19,670.20x = 29,470.31 × 11,332.99
  4. Step 4: Simplify right side
    19,670.20x = 333,986,683.18
  5. Step 5: Solve for x
    x = 333,986,683.18/19,670.20
  6. Step 6: Final answer
    x = 16,979.33

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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.