Home / 28,309.33-39,065.92-15,733.81

Finding the Fourth Proportional to 28,309.33, 39,065.92 and 15,733.81

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Solution

The fourth proportional to 28,309.33, 39,065.92 and 15,733.81 is: 21,712.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,309.33 : 39,065.92 = 15,733.81 : x
  2. Step 2: Convert to fraction form
    28,309.33/39,065.92 = 15,733.81/x
  3. Step 3: Cross multiply
    28,309.33x = 39,065.92 × 15,733.81
  4. Step 4: Simplify right side
    28,309.33x = 614,655,762.76
  5. Step 5: Solve for x
    x = 614,655,762.76/28,309.33
  6. Step 6: Final answer
    x = 21,712.13

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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.