Home / 28,218.16-42,341.10-11,350.50

Finding the Fourth Proportional to 28,218.16, 42,341.10 and 11,350.50

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Solution

The fourth proportional to 28,218.16, 42,341.10 and 11,350.50 is: 17,031.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,218.16 : 42,341.10 = 11,350.50 : x
  2. Step 2: Convert to fraction form
    28,218.16/42,341.10 = 11,350.50/x
  3. Step 3: Cross multiply
    28,218.16x = 42,341.10 × 11,350.50
  4. Step 4: Simplify right side
    28,218.16x = 480,592,655.55
  5. Step 5: Solve for x
    x = 480,592,655.55/28,218.16
  6. Step 6: Final answer
    x = 17,031.33

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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.