Home / 19,971.40-27,559.08-11,586.28

Finding the Fourth Proportional to 19,971.40, 27,559.08 and 11,586.28

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Solution

The fourth proportional to 19,971.40, 27,559.08 and 11,586.28 is: 15,988.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,971.40 : 27,559.08 = 11,586.28 : x
  2. Step 2: Convert to fraction form
    19,971.40/27,559.08 = 11,586.28/x
  3. Step 3: Cross multiply
    19,971.40x = 27,559.08 × 11,586.28
  4. Step 4: Simplify right side
    19,971.40x = 319,307,217.42
  5. Step 5: Solve for x
    x = 319,307,217.42/19,971.40
  6. Step 6: Final answer
    x = 15,988.22

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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.