Home / 22,070.94-30,428.64-18,280.14

Finding the Fourth Proportional to 22,070.94, 30,428.64 and 18,280.14

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Solution

The fourth proportional to 22,070.94, 30,428.64 and 18,280.14 is: 25,202.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,070.94 : 30,428.64 = 18,280.14 : x
  2. Step 2: Convert to fraction form
    22,070.94/30,428.64 = 18,280.14/x
  3. Step 3: Cross multiply
    22,070.94x = 30,428.64 × 18,280.14
  4. Step 4: Simplify right side
    22,070.94x = 556,239,799.21
  5. Step 5: Solve for x
    x = 556,239,799.21/22,070.94
  6. Step 6: Final answer
    x = 25,202.36

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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.