Home / 28,773.55-39,708.57-15,853.35

Finding the Fourth Proportional to 28,773.55, 39,708.57 and 15,853.35

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Solution

The fourth proportional to 28,773.55, 39,708.57 and 15,853.35 is: 21,878.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,773.55 : 39,708.57 = 15,853.35 : x
  2. Step 2: Convert to fraction form
    28,773.55/39,708.57 = 15,853.35/x
  3. Step 3: Cross multiply
    28,773.55x = 39,708.57 × 15,853.35
  4. Step 4: Simplify right side
    28,773.55x = 629,514,066.57
  5. Step 5: Solve for x
    x = 629,514,066.57/28,773.55
  6. Step 6: Final answer
    x = 21,878.22

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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.