Home / 42,623.78-63,935.64-11,459.02

Finding the Fourth Proportional to 42,623.78, 63,935.64 and 11,459.02

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Solution

The fourth proportional to 42,623.78, 63,935.64 and 11,459.02 is: 17,188.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,623.78 : 63,935.64 = 11,459.02 : x
  2. Step 2: Convert to fraction form
    42,623.78/63,935.64 = 11,459.02/x
  3. Step 3: Cross multiply
    42,623.78x = 63,935.64 × 11,459.02
  4. Step 4: Simplify right side
    42,623.78x = 732,639,777.47
  5. Step 5: Solve for x
    x = 732,639,777.47/42,623.78
  6. Step 6: Final answer
    x = 17,188.52

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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.