Home / 31,581.33-47,365.47-11,859.45

Finding the Fourth Proportional to 31,581.33, 47,365.47 and 11,859.45

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Solution

The fourth proportional to 31,581.33, 47,365.47 and 11,859.45 is: 17,786.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,581.33 : 47,365.47 = 11,859.45 : x
  2. Step 2: Convert to fraction form
    31,581.33/47,365.47 = 11,859.45/x
  3. Step 3: Cross multiply
    31,581.33x = 47,365.47 × 11,859.45
  4. Step 4: Simplify right side
    31,581.33x = 561,728,423.19
  5. Step 5: Solve for x
    x = 561,728,423.19/31,581.33
  6. Step 6: Final answer
    x = 17,786.72

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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.