Home / 34,087.96-47,028.90-20,649.52

Finding the Fourth Proportional to 34,087.96, 47,028.90 and 20,649.52

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Solution

The fourth proportional to 34,087.96, 47,028.90 and 20,649.52 is: 28,488.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,087.96 : 47,028.90 = 20,649.52 : x
  2. Step 2: Convert to fraction form
    34,087.96/47,028.90 = 20,649.52/x
  3. Step 3: Cross multiply
    34,087.96x = 47,028.90 × 20,649.52
  4. Step 4: Simplify right side
    34,087.96x = 971,124,211.13
  5. Step 5: Solve for x
    x = 971,124,211.13/34,087.96
  6. Step 6: Final answer
    x = 28,488.77

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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.