Home / 31,419.09-47,126.21-18,263.07

Finding the Fourth Proportional to 31,419.09, 47,126.21 and 18,263.07

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Solution

The fourth proportional to 31,419.09, 47,126.21 and 18,263.07 is: 27,393.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,419.09 : 47,126.21 = 18,263.07 : x
  2. Step 2: Convert to fraction form
    31,419.09/47,126.21 = 18,263.07/x
  3. Step 3: Cross multiply
    31,419.09x = 47,126.21 × 18,263.07
  4. Step 4: Simplify right side
    31,419.09x = 860,669,180.75
  5. Step 5: Solve for x
    x = 860,669,180.75/31,419.09
  6. Step 6: Final answer
    x = 27,393.19

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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.