Home / 23,013.81-34,521.14-7,218.49

Finding the Fourth Proportional to 23,013.81, 34,521.14 and 7,218.49

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Solution

The fourth proportional to 23,013.81, 34,521.14 and 7,218.49 is: 10,827.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,013.81 : 34,521.14 = 7,218.49 : x
  2. Step 2: Convert to fraction form
    23,013.81/34,521.14 = 7,218.49/x
  3. Step 3: Cross multiply
    23,013.81x = 34,521.14 × 7,218.49
  4. Step 4: Simplify right side
    23,013.81x = 249,190,503.88
  5. Step 5: Solve for x
    x = 249,190,503.88/23,013.81
  6. Step 6: Final answer
    x = 10,827.87

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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.