Home / 42,948.74-64,415.64-11,359.16

Finding the Fourth Proportional to 42,948.74, 64,415.64 and 11,359.16

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Solution

The fourth proportional to 42,948.74, 64,415.64 and 11,359.16 is: 17,036.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,948.74 : 64,415.64 = 11,359.16 : x
  2. Step 2: Convert to fraction form
    42,948.74/64,415.64 = 11,359.16/x
  3. Step 3: Cross multiply
    42,948.74x = 64,415.64 × 11,359.16
  4. Step 4: Simplify right side
    42,948.74x = 731,707,561.26
  5. Step 5: Solve for x
    x = 731,707,561.26/42,948.74
  6. Step 6: Final answer
    x = 17,036.76

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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.