Home / 34,654.30-47,830.34-21,899.36

Finding the Fourth Proportional to 34,654.30, 47,830.34 and 21,899.36

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Solution

The fourth proportional to 34,654.30, 47,830.34 and 21,899.36 is: 30,225.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,654.30 : 47,830.34 = 21,899.36 : x
  2. Step 2: Convert to fraction form
    34,654.30/47,830.34 = 21,899.36/x
  3. Step 3: Cross multiply
    34,654.30x = 47,830.34 × 21,899.36
  4. Step 4: Simplify right side
    34,654.30x = 1,047,454,008.91
  5. Step 5: Solve for x
    x = 1,047,454,008.91/34,654.30
  6. Step 6: Final answer
    x = 30,225.80

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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.