Home / 22,680.19-33,979.47-21,345.99

Finding the Fourth Proportional to 22,680.19, 33,979.47 and 21,345.99

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Solution

The fourth proportional to 22,680.19, 33,979.47 and 21,345.99 is: 31,980.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,680.19 : 33,979.47 = 21,345.99 : x
  2. Step 2: Convert to fraction form
    22,680.19/33,979.47 = 21,345.99/x
  3. Step 3: Cross multiply
    22,680.19x = 33,979.47 × 21,345.99
  4. Step 4: Simplify right side
    22,680.19x = 725,325,426.83
  5. Step 5: Solve for x
    x = 725,325,426.83/22,680.19
  6. Step 6: Final answer
    x = 31,980.57

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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.