Home / 31,421.46-47,140.29-9,235.56

Finding the Fourth Proportional to 31,421.46, 47,140.29 and 9,235.56

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Solution

The fourth proportional to 31,421.46, 47,140.29 and 9,235.56 is: 13,855.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,421.46 : 47,140.29 = 9,235.56 : x
  2. Step 2: Convert to fraction form
    31,421.46/47,140.29 = 9,235.56/x
  3. Step 3: Cross multiply
    31,421.46x = 47,140.29 × 9,235.56
  4. Step 4: Simplify right side
    31,421.46x = 435,366,976.71
  5. Step 5: Solve for x
    x = 435,366,976.71/31,421.46
  6. Step 6: Final answer
    x = 13,855.72

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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.