Home / 28,208.06-42,314.90-10,443.47

Finding the Fourth Proportional to 28,208.06, 42,314.90 and 10,443.47

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Solution

The fourth proportional to 28,208.06, 42,314.90 and 10,443.47 is: 15,666.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,208.06 : 42,314.90 = 10,443.47 : x
  2. Step 2: Convert to fraction form
    28,208.06/42,314.90 = 10,443.47/x
  3. Step 3: Cross multiply
    28,208.06x = 42,314.90 × 10,443.47
  4. Step 4: Simplify right side
    28,208.06x = 441,914,124.91
  5. Step 5: Solve for x
    x = 441,914,124.91/28,208.06
  6. Step 6: Final answer
    x = 15,666.24

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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.