Home / 42,679.02-64,021.95-11,513.82

Finding the Fourth Proportional to 42,679.02, 64,021.95 and 11,513.82

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Solution

The fourth proportional to 42,679.02, 64,021.95 and 11,513.82 is: 17,271.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,679.02 : 64,021.95 = 11,513.82 : x
  2. Step 2: Convert to fraction form
    42,679.02/64,021.95 = 11,513.82/x
  3. Step 3: Cross multiply
    42,679.02x = 64,021.95 × 11,513.82
  4. Step 4: Simplify right side
    42,679.02x = 737,137,208.35
  5. Step 5: Solve for x
    x = 737,137,208.35/42,679.02
  6. Step 6: Final answer
    x = 17,271.65

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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.