Home / 19,345.38-26,712.38-15,760.87

Finding the Fourth Proportional to 19,345.38, 26,712.38 and 15,760.87

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Solution

The fourth proportional to 19,345.38, 26,712.38 and 15,760.87 is: 21,762.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,345.38 : 26,712.38 = 15,760.87 : x
  2. Step 2: Convert to fraction form
    19,345.38/26,712.38 = 15,760.87/x
  3. Step 3: Cross multiply
    19,345.38x = 26,712.38 × 15,760.87
  4. Step 4: Simplify right side
    19,345.38x = 421,010,283.63
  5. Step 5: Solve for x
    x = 421,010,283.63/19,345.38
  6. Step 6: Final answer
    x = 21,762.83

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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.