Home / 19,752.56-29,640.48-7,281.36

Finding the Fourth Proportional to 19,752.56, 29,640.48 and 7,281.36

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Solution

The fourth proportional to 19,752.56, 29,640.48 and 7,281.36 is: 10,926.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,752.56 : 29,640.48 = 7,281.36 : x
  2. Step 2: Convert to fraction form
    19,752.56/29,640.48 = 7,281.36/x
  3. Step 3: Cross multiply
    19,752.56x = 29,640.48 × 7,281.36
  4. Step 4: Simplify right side
    19,752.56x = 215,823,005.45
  5. Step 5: Solve for x
    x = 215,823,005.45/19,752.56
  6. Step 6: Final answer
    x = 10,926.33

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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.