Home / 42,830.70-64,257.12-16,528.38

Finding the Fourth Proportional to 42,830.70, 64,257.12 and 16,528.38

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Solution

The fourth proportional to 42,830.70, 64,257.12 and 16,528.38 is: 24,796.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,830.70 : 64,257.12 = 16,528.38 : x
  2. Step 2: Convert to fraction form
    42,830.70/64,257.12 = 16,528.38/x
  3. Step 3: Cross multiply
    42,830.70x = 64,257.12 × 16,528.38
  4. Step 4: Simplify right side
    42,830.70x = 1,062,066,097.07
  5. Step 5: Solve for x
    x = 1,062,066,097.07/42,830.70
  6. Step 6: Final answer
    x = 24,796.84

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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.