Home / 35,113.80-52,665.48-12,921.98

Finding the Fourth Proportional to 35,113.80, 52,665.48 and 12,921.98

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Solution

The fourth proportional to 35,113.80, 52,665.48 and 12,921.98 is: 19,381.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,113.80 : 52,665.48 = 12,921.98 : x
  2. Step 2: Convert to fraction form
    35,113.80/52,665.48 = 12,921.98/x
  3. Step 3: Cross multiply
    35,113.80x = 52,665.48 × 12,921.98
  4. Step 4: Simplify right side
    35,113.80x = 680,542,279.25
  5. Step 5: Solve for x
    x = 680,542,279.25/35,113.80
  6. Step 6: Final answer
    x = 19,381.05

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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.