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Finding the Fourth Proportional to 23,303.90, 34,779.79 and 21,723.79

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Solution

The fourth proportional to 23,303.90, 34,779.79 and 21,723.79 is: 32,421.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,303.90 : 34,779.79 = 21,723.79 : x
  2. Step 2: Convert to fraction form
    23,303.90/34,779.79 = 21,723.79/x
  3. Step 3: Cross multiply
    23,303.90x = 34,779.79 × 21,723.79
  4. Step 4: Simplify right side
    23,303.90x = 755,548,712.95
  5. Step 5: Solve for x
    x = 755,548,712.95/23,303.90
  6. Step 6: Final answer
    x = 32,421.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.