Home / 28,833.06-39,730.57-21,267.40

Finding the Fourth Proportional to 28,833.06, 39,730.57 and 21,267.40

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Solution

The fourth proportional to 28,833.06, 39,730.57 and 21,267.40 is: 29,305.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,833.06 : 39,730.57 = 21,267.40 : x
  2. Step 2: Convert to fraction form
    28,833.06/39,730.57 = 21,267.40/x
  3. Step 3: Cross multiply
    28,833.06x = 39,730.57 × 21,267.40
  4. Step 4: Simplify right side
    28,833.06x = 844,965,924.42
  5. Step 5: Solve for x
    x = 844,965,924.42/28,833.06
  6. Step 6: Final answer
    x = 29,305.45

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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.