Home / 19,125.42-28,699.21-8,031.15

Finding the Fourth Proportional to 19,125.42, 28,699.21 and 8,031.15

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Solution

The fourth proportional to 19,125.42, 28,699.21 and 8,031.15 is: 12,051.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,125.42 : 28,699.21 = 8,031.15 : x
  2. Step 2: Convert to fraction form
    19,125.42/28,699.21 = 8,031.15/x
  3. Step 3: Cross multiply
    19,125.42x = 28,699.21 × 8,031.15
  4. Step 4: Simplify right side
    19,125.42x = 230,487,670.43
  5. Step 5: Solve for x
    x = 230,487,670.43/19,125.42
  6. Step 6: Final answer
    x = 12,051.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.