Home / 20,714.65-28,586.54-11,283.21

Finding the Fourth Proportional to 20,714.65, 28,586.54 and 11,283.21

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Solution

The fourth proportional to 20,714.65, 28,586.54 and 11,283.21 is: 15,571.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,714.65 : 28,586.54 = 11,283.21 : x
  2. Step 2: Convert to fraction form
    20,714.65/28,586.54 = 11,283.21/x
  3. Step 3: Cross multiply
    20,714.65x = 28,586.54 × 11,283.21
  4. Step 4: Simplify right side
    20,714.65x = 322,547,933.99
  5. Step 5: Solve for x
    x = 322,547,933.99/20,714.65
  6. Step 6: Final answer
    x = 15,571.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.