Home / 28,355.48-39,062.88-19,841.72

Finding the Fourth Proportional to 28,355.48, 39,062.88 and 19,841.72

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Solution

The fourth proportional to 28,355.48, 39,062.88 and 19,841.72 is: 27,334.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,355.48 : 39,062.88 = 19,841.72 : x
  2. Step 2: Convert to fraction form
    28,355.48/39,062.88 = 19,841.72/x
  3. Step 3: Cross multiply
    28,355.48x = 39,062.88 × 19,841.72
  4. Step 4: Simplify right side
    28,355.48x = 775,074,727.35
  5. Step 5: Solve for x
    x = 775,074,727.35/28,355.48
  6. Step 6: Final answer
    x = 27,334.21

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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.