Home / 42,838.74-64,213.56-16,561.53

Finding the Fourth Proportional to 42,838.74, 64,213.56 and 16,561.53

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Solution

The fourth proportional to 42,838.74, 64,213.56 and 16,561.53 is: 24,825.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,838.74 : 64,213.56 = 16,561.53 : x
  2. Step 2: Convert to fraction form
    42,838.74/64,213.56 = 16,561.53/x
  3. Step 3: Cross multiply
    42,838.74x = 64,213.56 × 16,561.53
  4. Step 4: Simplify right side
    42,838.74x = 1,063,474,800.35
  5. Step 5: Solve for x
    x = 1,063,474,800.35/42,838.74
  6. Step 6: Final answer
    x = 24,825.07

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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.