Home / 40,686.78-61,030.17-19,622.91

Finding the Fourth Proportional to 40,686.78, 61,030.17 and 19,622.91

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Solution

The fourth proportional to 40,686.78, 61,030.17 and 19,622.91 is: 29,434.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,686.78 : 61,030.17 = 19,622.91 : x
  2. Step 2: Convert to fraction form
    40,686.78/61,030.17 = 19,622.91/x
  3. Step 3: Cross multiply
    40,686.78x = 61,030.17 × 19,622.91
  4. Step 4: Simplify right side
    40,686.78x = 1,197,589,533.19
  5. Step 5: Solve for x
    x = 1,197,589,533.19/40,686.78
  6. Step 6: Final answer
    x = 29,434.37

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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.