Home / 35,089.70-52,655.30-12,918.66

Finding the Fourth Proportional to 35,089.70, 52,655.30 and 12,918.66

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Solution

The fourth proportional to 35,089.70, 52,655.30 and 12,918.66 is: 19,385.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,089.70 : 52,655.30 = 12,918.66 : x
  2. Step 2: Convert to fraction form
    35,089.70/52,655.30 = 12,918.66/x
  3. Step 3: Cross multiply
    35,089.70x = 52,655.30 × 12,918.66
  4. Step 4: Simplify right side
    35,089.70x = 680,235,917.90
  5. Step 5: Solve for x
    x = 680,235,917.90/35,089.70
  6. Step 6: Final answer
    x = 19,385.63

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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.