Home / 30,449.19-42,026.66-18,510

Finding the Fourth Proportional to 30,449.19, 42,026.66 and 18,510

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Solution

The fourth proportional to 30,449.19, 42,026.66 and 18,510 is: 25,547.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,449.19 : 42,026.66 = 18,510 : x
  2. Step 2: Convert to fraction form
    30,449.19/42,026.66 = 18,510/x
  3. Step 3: Cross multiply
    30,449.19x = 42,026.66 × 18,510
  4. Step 4: Simplify right side
    30,449.19x = 777,913,476.60
  5. Step 5: Solve for x
    x = 777,913,476.60/30,449.19
  6. Step 6: Final answer
    x = 25,547.92

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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.