Home / 31,814.47-47,649.03-15,186.21

Finding the Fourth Proportional to 31,814.47, 47,649.03 and 15,186.21

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Solution

The fourth proportional to 31,814.47, 47,649.03 and 15,186.21 is: 22,744.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,814.47 : 47,649.03 = 15,186.21 : x
  2. Step 2: Convert to fraction form
    31,814.47/47,649.03 = 15,186.21/x
  3. Step 3: Cross multiply
    31,814.47x = 47,649.03 × 15,186.21
  4. Step 4: Simplify right side
    31,814.47x = 723,608,232.82
  5. Step 5: Solve for x
    x = 723,608,232.82/31,814.47
  6. Step 6: Final answer
    x = 22,744.63

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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.