Home / 28,218.43-42,297.80-10,437.66

Finding the Fourth Proportional to 28,218.43, 42,297.80 and 10,437.66

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Solution

The fourth proportional to 28,218.43, 42,297.80 and 10,437.66 is: 15,645.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,218.43 : 42,297.80 = 10,437.66 : x
  2. Step 2: Convert to fraction form
    28,218.43/42,297.80 = 10,437.66/x
  3. Step 3: Cross multiply
    28,218.43x = 42,297.80 × 10,437.66
  4. Step 4: Simplify right side
    28,218.43x = 441,490,002.96
  5. Step 5: Solve for x
    x = 441,490,002.96/28,218.43
  6. Step 6: Final answer
    x = 15,645.45

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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.