Home / 20,854.36-31,259.66-9,751.69

Finding the Fourth Proportional to 20,854.36, 31,259.66 and 9,751.69

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Solution

The fourth proportional to 20,854.36, 31,259.66 and 9,751.69 is: 14,617.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,854.36 : 31,259.66 = 9,751.69 : x
  2. Step 2: Convert to fraction form
    20,854.36/31,259.66 = 9,751.69/x
  3. Step 3: Cross multiply
    20,854.36x = 31,259.66 × 9,751.69
  4. Step 4: Simplify right side
    20,854.36x = 304,834,460.06
  5. Step 5: Solve for x
    x = 304,834,460.06/20,854.36
  6. Step 6: Final answer
    x = 14,617.30

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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.