Home / 28,835.06-39,733.33-21,269.40

Finding the Fourth Proportional to 28,835.06, 39,733.33 and 21,269.40

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Solution

The fourth proportional to 28,835.06, 39,733.33 and 21,269.40 is: 29,308.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,835.06 : 39,733.33 = 21,269.40 : x
  2. Step 2: Convert to fraction form
    28,835.06/39,733.33 = 21,269.40/x
  3. Step 3: Cross multiply
    28,835.06x = 39,733.33 × 21,269.40
  4. Step 4: Simplify right side
    28,835.06x = 845,104,089.10
  5. Step 5: Solve for x
    x = 845,104,089.10/28,835.06
  6. Step 6: Final answer
    x = 29,308.21

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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.