Home / 30,444.28-42,026.04-18,511.42

Finding the Fourth Proportional to 30,444.28, 42,026.04 and 18,511.42

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Solution

The fourth proportional to 30,444.28, 42,026.04 and 18,511.42 is: 25,553.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,444.28 : 42,026.04 = 18,511.42 : x
  2. Step 2: Convert to fraction form
    30,444.28/42,026.04 = 18,511.42/x
  3. Step 3: Cross multiply
    30,444.28x = 42,026.04 × 18,511.42
  4. Step 4: Simplify right side
    30,444.28x = 777,961,677.38
  5. Step 5: Solve for x
    x = 777,961,677.38/30,444.28
  6. Step 6: Final answer
    x = 25,553.62

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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.