Home / 18,428.30-27,642.47-5,277.59

Finding the Fourth Proportional to 18,428.30, 27,642.47 and 5,277.59

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Solution

The fourth proportional to 18,428.30, 27,642.47 and 5,277.59 is: 7,916.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,428.30 : 27,642.47 = 5,277.59 : x
  2. Step 2: Convert to fraction form
    18,428.30/27,642.47 = 5,277.59/x
  3. Step 3: Cross multiply
    18,428.30x = 27,642.47 × 5,277.59
  4. Step 4: Simplify right side
    18,428.30x = 145,885,623.25
  5. Step 5: Solve for x
    x = 145,885,623.25/18,428.30
  6. Step 6: Final answer
    x = 7,916.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.