Home / 15,419.40-23,122.62-10,491.72

Finding the Fourth Proportional to 15,419.40, 23,122.62 and 10,491.72

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Solution

The fourth proportional to 15,419.40, 23,122.62 and 10,491.72 is: 15,733.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,419.40 : 23,122.62 = 10,491.72 : x
  2. Step 2: Convert to fraction form
    15,419.40/23,122.62 = 10,491.72/x
  3. Step 3: Cross multiply
    15,419.40x = 23,122.62 × 10,491.72
  4. Step 4: Simplify right side
    15,419.40x = 242,596,054.71
  5. Step 5: Solve for x
    x = 242,596,054.71/15,419.40
  6. Step 6: Final answer
    x = 15,733.17

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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.