Home / 42,830.16-64,245.24-17,881.98

Finding the Fourth Proportional to 42,830.16, 64,245.24 and 17,881.98

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Solution

The fourth proportional to 42,830.16, 64,245.24 and 17,881.98 is: 26,822.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,830.16 : 64,245.24 = 17,881.98 : x
  2. Step 2: Convert to fraction form
    42,830.16/64,245.24 = 17,881.98/x
  3. Step 3: Cross multiply
    42,830.16x = 64,245.24 × 17,881.98
  4. Step 4: Simplify right side
    42,830.16x = 1,148,832,096.78
  5. Step 5: Solve for x
    x = 1,148,832,096.78/42,830.16
  6. Step 6: Final answer
    x = 26,822.97

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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.