Home / 22,707.99-31,320.27-15,636.69

Finding the Fourth Proportional to 22,707.99, 31,320.27 and 15,636.69

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Solution

The fourth proportional to 22,707.99, 31,320.27 and 15,636.69 is: 21,567.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,707.99 : 31,320.27 = 15,636.69 : x
  2. Step 2: Convert to fraction form
    22,707.99/31,320.27 = 15,636.69/x
  3. Step 3: Cross multiply
    22,707.99x = 31,320.27 × 15,636.69
  4. Step 4: Simplify right side
    22,707.99x = 489,745,352.71
  5. Step 5: Solve for x
    x = 489,745,352.71/22,707.99
  6. Step 6: Final answer
    x = 21,567.09

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.