Home / 20,741.42-28,636.65-14,291.93

Finding the Fourth Proportional to 20,741.42, 28,636.65 and 14,291.93

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Solution

The fourth proportional to 20,741.42, 28,636.65 and 14,291.93 is: 19,732.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,741.42 : 28,636.65 = 14,291.93 : x
  2. Step 2: Convert to fraction form
    20,741.42/28,636.65 = 14,291.93/x
  3. Step 3: Cross multiply
    20,741.42x = 28,636.65 × 14,291.93
  4. Step 4: Simplify right side
    20,741.42x = 409,272,854.05
  5. Step 5: Solve for x
    x = 409,272,854.05/20,741.42
  6. Step 6: Final answer
    x = 19,732.16

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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.