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Finding the Fourth Proportional to 14,615.90, 20,514.10 and 14,615.90

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Solution

The fourth proportional to 14,615.90, 20,514.10 and 14,615.90 is: 20,514.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,615.90 : 20,514.10 = 14,615.90 : x
  2. Step 2: Convert to fraction form
    14,615.90/20,514.10 = 14,615.90/x
  3. Step 3: Cross multiply
    14,615.90x = 20,514.10 × 14,615.90
  4. Step 4: Simplify right side
    14,615.90x = 299,832,034.19
  5. Step 5: Solve for x
    x = 299,832,034.19/14,615.90
  6. Step 6: Final answer
    x = 20,514.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.