Home / 35,120.43-52,655.99-12,930.98

Finding the Fourth Proportional to 35,120.43, 52,655.99 and 12,930.98

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Solution

The fourth proportional to 35,120.43, 52,655.99 and 12,930.98 is: 19,387.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,120.43 : 52,655.99 = 12,930.98 : x
  2. Step 2: Convert to fraction form
    35,120.43/52,655.99 = 12,930.98/x
  3. Step 3: Cross multiply
    35,120.43x = 52,655.99 × 12,930.98
  4. Step 4: Simplify right side
    35,120.43x = 680,893,225.64
  5. Step 5: Solve for x
    x = 680,893,225.64/35,120.43
  6. Step 6: Final answer
    x = 19,387.38

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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.