Home / 31,615.05-47,429.46-9,430.23

Finding the Fourth Proportional to 31,615.05, 47,429.46 and 9,430.23

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Solution

The fourth proportional to 31,615.05, 47,429.46 and 9,430.23 is: 14,147.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,615.05 : 47,429.46 = 9,430.23 : x
  2. Step 2: Convert to fraction form
    31,615.05/47,429.46 = 9,430.23/x
  3. Step 3: Cross multiply
    31,615.05x = 47,429.46 × 9,430.23
  4. Step 4: Simplify right side
    31,615.05x = 447,270,716.58
  5. Step 5: Solve for x
    x = 447,270,716.58/31,615.05
  6. Step 6: Final answer
    x = 14,147.40

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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.