Home / 28,674.32-42,995.06-11,123.66

Finding the Fourth Proportional to 28,674.32, 42,995.06 and 11,123.66

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Solution

The fourth proportional to 28,674.32, 42,995.06 and 11,123.66 is: 16,679.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,674.32 : 42,995.06 = 11,123.66 : x
  2. Step 2: Convert to fraction form
    28,674.32/42,995.06 = 11,123.66/x
  3. Step 3: Cross multiply
    28,674.32x = 42,995.06 × 11,123.66
  4. Step 4: Simplify right side
    28,674.32x = 478,262,429.12
  5. Step 5: Solve for x
    x = 478,262,429.12/28,674.32
  6. Step 6: Final answer
    x = 16,679.12

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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.