Home / 42,889.42-64,312.19-17,922.66

Finding the Fourth Proportional to 42,889.42, 64,312.19 and 17,922.66

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Solution

The fourth proportional to 42,889.42, 64,312.19 and 17,922.66 is: 26,874.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,889.42 : 64,312.19 = 17,922.66 : x
  2. Step 2: Convert to fraction form
    42,889.42/64,312.19 = 17,922.66/x
  3. Step 3: Cross multiply
    42,889.42x = 64,312.19 × 17,922.66
  4. Step 4: Simplify right side
    42,889.42x = 1,152,645,515.23
  5. Step 5: Solve for x
    x = 1,152,645,515.23/42,889.42
  6. Step 6: Final answer
    x = 26,874.82

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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.