Home / 42,918.36-64,338.35-16,603.28

Finding the Fourth Proportional to 42,918.36, 64,338.35 and 16,603.28

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Solution

The fourth proportional to 42,918.36, 64,338.35 and 16,603.28 is: 24,889.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,918.36 : 64,338.35 = 16,603.28 : x
  2. Step 2: Convert to fraction form
    42,918.36/64,338.35 = 16,603.28/x
  3. Step 3: Cross multiply
    42,918.36x = 64,338.35 × 16,603.28
  4. Step 4: Simplify right side
    42,918.36x = 1,068,227,569.74
  5. Step 5: Solve for x
    x = 1,068,227,569.74/42,918.36
  6. Step 6: Final answer
    x = 24,889.76

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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.