Home / 34,208.12-47,207.40-20,061.20

Finding the Fourth Proportional to 34,208.12, 47,207.40 and 20,061.20

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Solution

The fourth proportional to 34,208.12, 47,207.40 and 20,061.20 is: 27,684.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,208.12 : 47,207.40 = 20,061.20 : x
  2. Step 2: Convert to fraction form
    34,208.12/47,207.40 = 20,061.20/x
  3. Step 3: Cross multiply
    34,208.12x = 47,207.40 × 20,061.20
  4. Step 4: Simplify right side
    34,208.12x = 947,037,092.88
  5. Step 5: Solve for x
    x = 947,037,092.88/34,208.12
  6. Step 6: Final answer
    x = 27,684.57

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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.