Home / 28,220.72-42,326.48-10,459.76

Finding the Fourth Proportional to 28,220.72, 42,326.48 and 10,459.76

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Solution

The fourth proportional to 28,220.72, 42,326.48 and 10,459.76 is: 15,687.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,220.72 : 42,326.48 = 10,459.76 : x
  2. Step 2: Convert to fraction form
    28,220.72/42,326.48 = 10,459.76/x
  3. Step 3: Cross multiply
    28,220.72x = 42,326.48 × 10,459.76
  4. Step 4: Simplify right side
    28,220.72x = 442,724,822.44
  5. Step 5: Solve for x
    x = 442,724,822.44/28,220.72
  6. Step 6: Final answer
    x = 15,687.94

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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.