Home / 29,581.84-40,812.48-18,977.20

Finding the Fourth Proportional to 29,581.84, 40,812.48 and 18,977.20

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Solution

The fourth proportional to 29,581.84, 40,812.48 and 18,977.20 is: 26,181.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,581.84 : 40,812.48 = 18,977.20 : x
  2. Step 2: Convert to fraction form
    29,581.84/40,812.48 = 18,977.20/x
  3. Step 3: Cross multiply
    29,581.84x = 40,812.48 × 18,977.20
  4. Step 4: Simplify right side
    29,581.84x = 774,506,595.46
  5. Step 5: Solve for x
    x = 774,506,595.46/29,581.84
  6. Step 6: Final answer
    x = 26,181.83

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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.