Home / 35,119.88-52,655.18-12,930.36

Finding the Fourth Proportional to 35,119.88, 52,655.18 and 12,930.36

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Solution

The fourth proportional to 35,119.88, 52,655.18 and 12,930.36 is: 19,386.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,119.88 : 52,655.18 = 12,930.36 : x
  2. Step 2: Convert to fraction form
    35,119.88/52,655.18 = 12,930.36/x
  3. Step 3: Cross multiply
    35,119.88x = 52,655.18 × 12,930.36
  4. Step 4: Simplify right side
    35,119.88x = 680,850,433.26
  5. Step 5: Solve for x
    x = 680,850,433.26/35,119.88
  6. Step 6: Final answer
    x = 19,386.47

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1.5x scale

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.