Home / 34,157.60-47,130.32-20,735.92

Finding the Fourth Proportional to 34,157.60, 47,130.32 and 20,735.92

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Solution

The fourth proportional to 34,157.60, 47,130.32 and 20,735.92 is: 28,611.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,157.60 : 47,130.32 = 20,735.92 : x
  2. Step 2: Convert to fraction form
    34,157.60/47,130.32 = 20,735.92/x
  3. Step 3: Cross multiply
    34,157.60x = 47,130.32 × 20,735.92
  4. Step 4: Simplify right side
    34,157.60x = 977,290,545.09
  5. Step 5: Solve for x
    x = 977,290,545.09/34,157.60
  6. Step 6: Final answer
    x = 28,611.22

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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.