Home / 20,888.24-31,335.46-7,564.34

Finding the Fourth Proportional to 20,888.24, 31,335.46 and 7,564.34

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Solution

The fourth proportional to 20,888.24, 31,335.46 and 7,564.34 is: 11,347.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,888.24 : 31,335.46 = 7,564.34 : x
  2. Step 2: Convert to fraction form
    20,888.24/31,335.46 = 7,564.34/x
  3. Step 3: Cross multiply
    20,888.24x = 31,335.46 × 7,564.34
  4. Step 4: Simplify right side
    20,888.24x = 237,032,132.92
  5. Step 5: Solve for x
    x = 237,032,132.92/20,888.24
  6. Step 6: Final answer
    x = 11,347.64

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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.