Home / 20,117.67-27,763.59-11,621.35

Finding the Fourth Proportional to 20,117.67, 27,763.59 and 11,621.35

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Solution

The fourth proportional to 20,117.67, 27,763.59 and 11,621.35 is: 16,038.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,117.67 : 27,763.59 = 11,621.35 : x
  2. Step 2: Convert to fraction form
    20,117.67/27,763.59 = 11,621.35/x
  3. Step 3: Cross multiply
    20,117.67x = 27,763.59 × 11,621.35
  4. Step 4: Simplify right side
    20,117.67x = 322,650,396.65
  5. Step 5: Solve for x
    x = 322,650,396.65/20,117.67
  6. Step 6: Final answer
    x = 16,038.16

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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.