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Finding the Fourth Proportional to 34,643.99, 47,808.84 and 21,902.76

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Solution

The fourth proportional to 34,643.99, 47,808.84 and 21,902.76 is: 30,225.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,643.99 : 47,808.84 = 21,902.76 : x
  2. Step 2: Convert to fraction form
    34,643.99/47,808.84 = 21,902.76/x
  3. Step 3: Cross multiply
    34,643.99x = 47,808.84 × 21,902.76
  4. Step 4: Simplify right side
    34,643.99x = 1,047,145,548.40
  5. Step 5: Solve for x
    x = 1,047,145,548.40/34,643.99
  6. Step 6: Final answer
    x = 30,225.90

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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.