Home / 27,458.40-37,889.20-19,497.72

Finding the Fourth Proportional to 27,458.40, 37,889.20 and 19,497.72

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Solution

The fourth proportional to 27,458.40, 37,889.20 and 19,497.72 is: 26,904.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,458.40 : 37,889.20 = 19,497.72 : x
  2. Step 2: Convert to fraction form
    27,458.40/37,889.20 = 19,497.72/x
  3. Step 3: Cross multiply
    27,458.40x = 37,889.20 × 19,497.72
  4. Step 4: Simplify right side
    27,458.40x = 738,753,012.62
  5. Step 5: Solve for x
    x = 738,753,012.62/27,458.40
  6. Step 6: Final answer
    x = 26,904.45

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Double 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.