Home / 28,208.56-42,315.64-10,443.96

Finding the Fourth Proportional to 28,208.56, 42,315.64 and 10,443.96

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Solution

The fourth proportional to 28,208.56, 42,315.64 and 10,443.96 is: 15,666.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,208.56 : 42,315.64 = 10,443.96 : x
  2. Step 2: Convert to fraction form
    28,208.56/42,315.64 = 10,443.96/x
  3. Step 3: Cross multiply
    28,208.56x = 42,315.64 × 10,443.96
  4. Step 4: Simplify right side
    28,208.56x = 441,942,851.53
  5. Step 5: Solve for x
    x = 441,942,851.53/28,208.56
  6. Step 6: Final answer
    x = 15,666.98

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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.