Home / 18,225.68-27,338.51-10,428.98

Finding the Fourth Proportional to 18,225.68, 27,338.51 and 10,428.98

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Solution

The fourth proportional to 18,225.68, 27,338.51 and 10,428.98 is: 15,643.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,225.68 : 27,338.51 = 10,428.98 : x
  2. Step 2: Convert to fraction form
    18,225.68/27,338.51 = 10,428.98/x
  3. Step 3: Cross multiply
    18,225.68x = 27,338.51 × 10,428.98
  4. Step 4: Simplify right side
    18,225.68x = 285,112,663.40
  5. Step 5: Solve for x
    x = 285,112,663.40/18,225.68
  6. Step 6: Final answer
    x = 15,643.46

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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.