Home / 31,406.09-47,114.26-9,220.19

Finding the Fourth Proportional to 31,406.09, 47,114.26 and 9,220.19

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Solution

The fourth proportional to 31,406.09, 47,114.26 and 9,220.19 is: 13,831.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,406.09 : 47,114.26 = 9,220.19 : x
  2. Step 2: Convert to fraction form
    31,406.09/47,114.26 = 9,220.19/x
  3. Step 3: Cross multiply
    31,406.09x = 47,114.26 × 9,220.19
  4. Step 4: Simplify right side
    31,406.09x = 434,402,170.29
  5. Step 5: Solve for x
    x = 434,402,170.29/31,406.09
  6. Step 6: Final answer
    x = 13,831.78

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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.