Home / 19,970.72-27,559.68-11,587.04

Finding the Fourth Proportional to 19,970.72, 27,559.68 and 11,587.04

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Solution

The fourth proportional to 19,970.72, 27,559.68 and 11,587.04 is: 15,990.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,970.72 : 27,559.68 = 11,587.04 : x
  2. Step 2: Convert to fraction form
    19,970.72/27,559.68 = 11,587.04/x
  3. Step 3: Cross multiply
    19,970.72x = 27,559.68 × 11,587.04
  4. Step 4: Simplify right side
    19,970.72x = 319,335,114.55
  5. Step 5: Solve for x
    x = 319,335,114.55/19,970.72
  6. Step 6: Final answer
    x = 15,990.17

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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.