Home / 20,833.16-31,252.80-7,505.06

Finding the Fourth Proportional to 20,833.16, 31,252.80 and 7,505.06

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Solution

The fourth proportional to 20,833.16, 31,252.80 and 7,505.06 is: 11,258.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,833.16 : 31,252.80 = 7,505.06 : x
  2. Step 2: Convert to fraction form
    20,833.16/31,252.80 = 7,505.06/x
  3. Step 3: Cross multiply
    20,833.16x = 31,252.80 × 7,505.06
  4. Step 4: Simplify right side
    20,833.16x = 234,554,139.17
  5. Step 5: Solve for x
    x = 234,554,139.17/20,833.16
  6. Step 6: Final answer
    x = 11,258.69

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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.