Home / 30,179.16-45,083.25-21,787.56

Finding the Fourth Proportional to 30,179.16, 45,083.25 and 21,787.56

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Solution

The fourth proportional to 30,179.16, 45,083.25 and 21,787.56 is: 32,547.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,179.16 : 45,083.25 = 21,787.56 : x
  2. Step 2: Convert to fraction form
    30,179.16/45,083.25 = 21,787.56/x
  3. Step 3: Cross multiply
    30,179.16x = 45,083.25 × 21,787.56
  4. Step 4: Simplify right side
    30,179.16x = 982,254,014.37
  5. Step 5: Solve for x
    x = 982,254,014.37/30,179.16
  6. Step 6: Final answer
    x = 32,547.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.