Home / 31,437.69-47,157.63-10,378.23

Finding the Fourth Proportional to 31,437.69, 47,157.63 and 10,378.23

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Solution

The fourth proportional to 31,437.69, 47,157.63 and 10,378.23 is: 15,567.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,437.69 : 47,157.63 = 10,378.23 : x
  2. Step 2: Convert to fraction form
    31,437.69/47,157.63 = 10,378.23/x
  3. Step 3: Cross multiply
    31,437.69x = 47,157.63 × 10,378.23
  4. Step 4: Simplify right side
    31,437.69x = 489,412,730.39
  5. Step 5: Solve for x
    x = 489,412,730.39/31,437.69
  6. Step 6: Final answer
    x = 15,567.71

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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.