Home / 31,678.68-47,528.58-10,620.81

Finding the Fourth Proportional to 31,678.68, 47,528.58 and 10,620.81

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Solution

The fourth proportional to 31,678.68, 47,528.58 and 10,620.81 is: 15,934.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,678.68 : 47,528.58 = 10,620.81 : x
  2. Step 2: Convert to fraction form
    31,678.68/47,528.58 = 10,620.81/x
  3. Step 3: Cross multiply
    31,678.68x = 47,528.58 × 10,620.81
  4. Step 4: Simplify right side
    31,678.68x = 504,792,017.75
  5. Step 5: Solve for x
    x = 504,792,017.75/31,678.68
  6. Step 6: Final answer
    x = 15,934.76

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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.