Home / 47,271.29-70,920.68-13,992.21

Finding the Fourth Proportional to 47,271.29, 70,920.68 and 13,992.21

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Solution

The fourth proportional to 47,271.29, 70,920.68 and 13,992.21 is: 20,992.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,271.29 : 70,920.68 = 13,992.21 : x
  2. Step 2: Convert to fraction form
    47,271.29/70,920.68 = 13,992.21/x
  3. Step 3: Cross multiply
    47,271.29x = 70,920.68 × 13,992.21
  4. Step 4: Simplify right side
    47,271.29x = 992,336,977.94
  5. Step 5: Solve for x
    x = 992,336,977.94/47,271.29
  6. Step 6: Final answer
    x = 20,992.38

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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.