Home / 20,840.60-31,260.75-17,713.19

Finding the Fourth Proportional to 20,840.60, 31,260.75 and 17,713.19

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Solution

The fourth proportional to 20,840.60, 31,260.75 and 17,713.19 is: 26,569.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,840.60 : 31,260.75 = 17,713.19 : x
  2. Step 2: Convert to fraction form
    20,840.60/31,260.75 = 17,713.19/x
  3. Step 3: Cross multiply
    20,840.60x = 31,260.75 × 17,713.19
  4. Step 4: Simplify right side
    20,840.60x = 553,727,616.02
  5. Step 5: Solve for x
    x = 553,727,616.02/20,840.60
  6. Step 6: Final answer
    x = 26,569.65

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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.