Home / 31,609.65-47,421.32-16,816.42

Finding the Fourth Proportional to 31,609.65, 47,421.32 and 16,816.42

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Solution

The fourth proportional to 31,609.65, 47,421.32 and 16,816.42 is: 25,228.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,609.65 : 47,421.32 = 16,816.42 : x
  2. Step 2: Convert to fraction form
    31,609.65/47,421.32 = 16,816.42/x
  3. Step 3: Cross multiply
    31,609.65x = 47,421.32 × 16,816.42
  4. Step 4: Simplify right side
    31,609.65x = 797,456,809.27
  5. Step 5: Solve for x
    x = 797,456,809.27/31,609.65
  6. Step 6: Final answer
    x = 25,228.27

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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.