Home / 28,519.50-42,756.18-11,892.06

Finding the Fourth Proportional to 28,519.50, 42,756.18 and 11,892.06

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Solution

The fourth proportional to 28,519.50, 42,756.18 and 11,892.06 is: 17,828.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,519.50 : 42,756.18 = 11,892.06 : x
  2. Step 2: Convert to fraction form
    28,519.50/42,756.18 = 11,892.06/x
  3. Step 3: Cross multiply
    28,519.50x = 42,756.18 × 11,892.06
  4. Step 4: Simplify right side
    28,519.50x = 508,459,057.93
  5. Step 5: Solve for x
    x = 508,459,057.93/28,519.50
  6. Step 6: Final answer
    x = 17,828.47

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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.