Home / 19,664.18-29,471.64-15,487.69

Finding the Fourth Proportional to 19,664.18, 29,471.64 and 15,487.69

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Solution

The fourth proportional to 19,664.18, 29,471.64 and 15,487.69 is: 23,212.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,664.18 : 29,471.64 = 15,487.69 : x
  2. Step 2: Convert to fraction form
    19,664.18/29,471.64 = 15,487.69/x
  3. Step 3: Cross multiply
    19,664.18x = 29,471.64 × 15,487.69
  4. Step 4: Simplify right side
    19,664.18x = 456,447,550.43
  5. Step 5: Solve for x
    x = 456,447,550.43/19,664.18
  6. Step 6: Final answer
    x = 23,212.14

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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.