Home / 28,613.65-42,929.81-13,824.26

Finding the Fourth Proportional to 28,613.65, 42,929.81 and 13,824.26

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Solution

The fourth proportional to 28,613.65, 42,929.81 and 13,824.26 is: 20,740.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,613.65 : 42,929.81 = 13,824.26 : x
  2. Step 2: Convert to fraction form
    28,613.65/42,929.81 = 13,824.26/x
  3. Step 3: Cross multiply
    28,613.65x = 42,929.81 × 13,824.26
  4. Step 4: Simplify right side
    28,613.65x = 593,472,786.07
  5. Step 5: Solve for x
    x = 593,472,786.07/28,613.65
  6. Step 6: Final answer
    x = 20,740.90

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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.