Home / 31,837.91-47,776.91-17,807.12

Finding the Fourth Proportional to 31,837.91, 47,776.91 and 17,807.12

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Solution

The fourth proportional to 31,837.91, 47,776.91 and 17,807.12 is: 26,721.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,837.91 : 47,776.91 = 17,807.12 : x
  2. Step 2: Convert to fraction form
    31,837.91/47,776.91 = 17,807.12/x
  3. Step 3: Cross multiply
    31,837.91x = 47,776.91 × 17,807.12
  4. Step 4: Simplify right side
    31,837.91x = 850,768,841.68
  5. Step 5: Solve for x
    x = 850,768,841.68/31,837.91
  6. Step 6: Final answer
    x = 26,721.89

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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.