Home / 30,035.20-41,447.04-16,787.20

Finding the Fourth Proportional to 30,035.20, 41,447.04 and 16,787.20

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Solution

The fourth proportional to 30,035.20, 41,447.04 and 16,787.20 is: 23,165.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,035.20 : 41,447.04 = 16,787.20 : x
  2. Step 2: Convert to fraction form
    30,035.20/41,447.04 = 16,787.20/x
  3. Step 3: Cross multiply
    30,035.20x = 41,447.04 × 16,787.20
  4. Step 4: Simplify right side
    30,035.20x = 695,779,749.89
  5. Step 5: Solve for x
    x = 695,779,749.89/30,035.20
  6. Step 6: Final answer
    x = 23,165.48

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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.