Home / 19,547.21-26,975.19-11,479.31

Finding the Fourth Proportional to 19,547.21, 26,975.19 and 11,479.31

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Solution

The fourth proportional to 19,547.21, 26,975.19 and 11,479.31 is: 15,841.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,547.21 : 26,975.19 = 11,479.31 : x
  2. Step 2: Convert to fraction form
    19,547.21/26,975.19 = 11,479.31/x
  3. Step 3: Cross multiply
    19,547.21x = 26,975.19 × 11,479.31
  4. Step 4: Simplify right side
    19,547.21x = 309,656,510.92
  5. Step 5: Solve for x
    x = 309,656,510.92/19,547.21
  6. Step 6: Final answer
    x = 15,841.47

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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.