Home / 31,747.36-47,615.28-16,955.68

Finding the Fourth Proportional to 31,747.36, 47,615.28 and 16,955.68

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Solution

The fourth proportional to 31,747.36, 47,615.28 and 16,955.68 is: 25,430.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,747.36 : 47,615.28 = 16,955.68 : x
  2. Step 2: Convert to fraction form
    31,747.36/47,615.28 = 16,955.68/x
  3. Step 3: Cross multiply
    31,747.36x = 47,615.28 × 16,955.68
  4. Step 4: Simplify right side
    31,747.36x = 807,349,450.79
  5. Step 5: Solve for x
    x = 807,349,450.79/31,747.36
  6. Step 6: Final answer
    x = 25,430.44

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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.