Home / 17,424.10-26,139.80-5,417.47

Finding the Fourth Proportional to 17,424.10, 26,139.80 and 5,417.47

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Solution

The fourth proportional to 17,424.10, 26,139.80 and 5,417.47 is: 8,127.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,424.10 : 26,139.80 = 5,417.47 : x
  2. Step 2: Convert to fraction form
    17,424.10/26,139.80 = 5,417.47/x
  3. Step 3: Cross multiply
    17,424.10x = 26,139.80 × 5,417.47
  4. Step 4: Simplify right side
    17,424.10x = 141,611,582.31
  5. Step 5: Solve for x
    x = 141,611,582.31/17,424.10
  6. Step 6: Final answer
    x = 8,127.34

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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.