Home / 19,875.44-27,428.02-11,377.53

Finding the Fourth Proportional to 19,875.44, 27,428.02 and 11,377.53

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Solution

The fourth proportional to 19,875.44, 27,428.02 and 11,377.53 is: 15,700.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,875.44 : 27,428.02 = 11,377.53 : x
  2. Step 2: Convert to fraction form
    19,875.44/27,428.02 = 11,377.53/x
  3. Step 3: Cross multiply
    19,875.44x = 27,428.02 × 11,377.53
  4. Step 4: Simplify right side
    19,875.44x = 312,062,926.36
  5. Step 5: Solve for x
    x = 312,062,926.36/19,875.44
  6. Step 6: Final answer
    x = 15,700.94

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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.