Home / 22,715.96-34,064.21-7,920.50

Finding the Fourth Proportional to 22,715.96, 34,064.21 and 7,920.50

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Solution

The fourth proportional to 22,715.96, 34,064.21 and 7,920.50 is: 11,877.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,715.96 : 34,064.21 = 7,920.50 : x
  2. Step 2: Convert to fraction form
    22,715.96/34,064.21 = 7,920.50/x
  3. Step 3: Cross multiply
    22,715.96x = 34,064.21 × 7,920.50
  4. Step 4: Simplify right side
    22,715.96x = 269,805,424.79
  5. Step 5: Solve for x
    x = 269,805,424.79/22,715.96
  6. Step 6: Final answer
    x = 11,877.35

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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.