Home / 28,833.30-39,730.91-21,267.66

Finding the Fourth Proportional to 28,833.30, 39,730.91 and 21,267.66

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Solution

The fourth proportional to 28,833.30, 39,730.91 and 21,267.66 is: 29,305.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,833.30 : 39,730.91 = 21,267.66 : x
  2. Step 2: Convert to fraction form
    28,833.30/39,730.91 = 21,267.66/x
  3. Step 3: Cross multiply
    28,833.30x = 39,730.91 × 21,267.66
  4. Step 4: Simplify right side
    28,833.30x = 844,983,528.02
  5. Step 5: Solve for x
    x = 844,983,528.02/28,833.30
  6. Step 6: Final answer
    x = 29,305.82

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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.