Home / 20,057.56-27,681.47-11,559.98

Finding the Fourth Proportional to 20,057.56, 27,681.47 and 11,559.98

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Solution

The fourth proportional to 20,057.56, 27,681.47 and 11,559.98 is: 15,953.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,057.56 : 27,681.47 = 11,559.98 : x
  2. Step 2: Convert to fraction form
    20,057.56/27,681.47 = 11,559.98/x
  3. Step 3: Cross multiply
    20,057.56x = 27,681.47 × 11,559.98
  4. Step 4: Simplify right side
    20,057.56x = 319,997,239.57
  5. Step 5: Solve for x
    x = 319,997,239.57/20,057.56
  6. Step 6: Final answer
    x = 15,953.95

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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.