Home / 28,021.01-42,031.37-8,298.05

Finding the Fourth Proportional to 28,021.01, 42,031.37 and 8,298.05

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Solution

The fourth proportional to 28,021.01, 42,031.37 and 8,298.05 is: 12,447.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,021.01 : 42,031.37 = 8,298.05 : x
  2. Step 2: Convert to fraction form
    28,021.01/42,031.37 = 8,298.05/x
  3. Step 3: Cross multiply
    28,021.01x = 42,031.37 × 8,298.05
  4. Step 4: Simplify right side
    28,021.01x = 348,778,220.42
  5. Step 5: Solve for x
    x = 348,778,220.42/28,021.01
  6. Step 6: Final answer
    x = 12,447.03

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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.