Home / 31,157.76-46,729.08-10,378.56

Finding the Fourth Proportional to 31,157.76, 46,729.08 and 10,378.56

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Solution

The fourth proportional to 31,157.76, 46,729.08 and 10,378.56 is: 15,565.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,157.76 : 46,729.08 = 10,378.56 : x
  2. Step 2: Convert to fraction form
    31,157.76/46,729.08 = 10,378.56/x
  3. Step 3: Cross multiply
    31,157.76x = 46,729.08 × 10,378.56
  4. Step 4: Simplify right side
    31,157.76x = 484,980,560.52
  5. Step 5: Solve for x
    x = 484,980,560.52/31,157.76
  6. Step 6: Final answer
    x = 15,565.32

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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.