Home / 20,724.51-31,060.59-8,864.18

Finding the Fourth Proportional to 20,724.51, 31,060.59 and 8,864.18

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Solution

The fourth proportional to 20,724.51, 31,060.59 and 8,864.18 is: 13,285.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.51 : 31,060.59 = 8,864.18 : x
  2. Step 2: Convert to fraction form
    20,724.51/31,060.59 = 8,864.18/x
  3. Step 3: Cross multiply
    20,724.51x = 31,060.59 × 8,864.18
  4. Step 4: Simplify right side
    20,724.51x = 275,326,694.00
  5. Step 5: Solve for x
    x = 275,326,694.00/20,724.51
  6. Step 6: Final answer
    x = 13,285.08

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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.