Home / 19,039.71-28,509.89-15,321.63

Finding the Fourth Proportional to 19,039.71, 28,509.89 and 15,321.63

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Solution

The fourth proportional to 19,039.71, 28,509.89 and 15,321.63 is: 22,942.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,039.71 : 28,509.89 = 15,321.63 : x
  2. Step 2: Convert to fraction form
    19,039.71/28,509.89 = 15,321.63/x
  3. Step 3: Cross multiply
    19,039.71x = 28,509.89 × 15,321.63
  4. Step 4: Simplify right side
    19,039.71x = 436,817,909.31
  5. Step 5: Solve for x
    x = 436,817,909.31/19,039.71
  6. Step 6: Final answer
    x = 22,942.47

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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.