Home / 34,540.64-47,651.10-21,783.76

Finding the Fourth Proportional to 34,540.64, 47,651.10 and 21,783.76

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Solution

The fourth proportional to 34,540.64, 47,651.10 and 21,783.76 is: 30,052.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,540.64 : 47,651.10 = 21,783.76 : x
  2. Step 2: Convert to fraction form
    34,540.64/47,651.10 = 21,783.76/x
  3. Step 3: Cross multiply
    34,540.64x = 47,651.10 × 21,783.76
  4. Step 4: Simplify right side
    34,540.64x = 1,038,020,126.14
  5. Step 5: Solve for x
    x = 1,038,020,126.14/34,540.64
  6. Step 6: Final answer
    x = 30,052.14

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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.