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Finding the Fourth Proportional to 15,619.71, 23,429.54 and 5,089.71

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Solution

The fourth proportional to 15,619.71, 23,429.54 and 5,089.71 is: 7,634.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,619.71 : 23,429.54 = 5,089.71 : x
  2. Step 2: Convert to fraction form
    15,619.71/23,429.54 = 5,089.71/x
  3. Step 3: Cross multiply
    15,619.71x = 23,429.54 × 5,089.71
  4. Step 4: Simplify right side
    15,619.71x = 119,249,664.62
  5. Step 5: Solve for x
    x = 119,249,664.62/15,619.71
  6. Step 6: Final answer
    x = 7,634.57

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1.5x scale

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.