Home / 34,418.82-47,486.60-20,985.18

Finding the Fourth Proportional to 34,418.82, 47,486.60 and 20,985.18

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Solution

The fourth proportional to 34,418.82, 47,486.60 and 20,985.18 is: 28,952.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,418.82 : 47,486.60 = 20,985.18 : x
  2. Step 2: Convert to fraction form
    34,418.82/47,486.60 = 20,985.18/x
  3. Step 3: Cross multiply
    34,418.82x = 47,486.60 × 20,985.18
  4. Step 4: Simplify right side
    34,418.82x = 996,514,762.32
  5. Step 5: Solve for x
    x = 996,514,762.32/34,418.82
  6. Step 6: Final answer
    x = 28,952.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.