Home / 28,308.96-39,066.24-15,733.68

Finding the Fourth Proportional to 28,308.96, 39,066.24 and 15,733.68

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Solution

The fourth proportional to 28,308.96, 39,066.24 and 15,733.68 is: 21,712.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,308.96 : 39,066.24 = 15,733.68 : x
  2. Step 2: Convert to fraction form
    28,308.96/39,066.24 = 15,733.68/x
  3. Step 3: Cross multiply
    28,308.96x = 39,066.24 × 15,733.68
  4. Step 4: Simplify right side
    28,308.96x = 614,655,718.96
  5. Step 5: Solve for x
    x = 614,655,718.96/28,308.96
  6. Step 6: Final answer
    x = 21,712.41

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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.