Home / 34,670.05-47,841.16-20,129.20

Finding the Fourth Proportional to 34,670.05, 47,841.16 and 20,129.20

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Solution

The fourth proportional to 34,670.05, 47,841.16 and 20,129.20 is: 27,776.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,670.05 : 47,841.16 = 20,129.20 : x
  2. Step 2: Convert to fraction form
    34,670.05/47,841.16 = 20,129.20/x
  3. Step 3: Cross multiply
    34,670.05x = 47,841.16 × 20,129.20
  4. Step 4: Simplify right side
    34,670.05x = 963,003,938.02
  5. Step 5: Solve for x
    x = 963,003,938.02/34,670.05
  6. Step 6: Final answer
    x = 27,776.25

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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.