Home / 42,921.13-64,392.63-16,278

Finding the Fourth Proportional to 42,921.13, 64,392.63 and 16,278

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Solution

The fourth proportional to 42,921.13, 64,392.63 and 16,278 is: 24,421.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,921.13 : 64,392.63 = 16,278 : x
  2. Step 2: Convert to fraction form
    42,921.13/64,392.63 = 16,278/x
  3. Step 3: Cross multiply
    42,921.13x = 64,392.63 × 16,278
  4. Step 4: Simplify right side
    42,921.13x = 1,048,183,149.75
  5. Step 5: Solve for x
    x = 1,048,183,149.75/42,921.13
  6. Step 6: Final answer
    x = 24,421.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.