Home / 28,972.28-43,457.96-9,250.74

Finding the Fourth Proportional to 28,972.28, 43,457.96 and 9,250.74

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Solution

The fourth proportional to 28,972.28, 43,457.96 and 9,250.74 is: 13,875.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,972.28 : 43,457.96 = 9,250.74 : x
  2. Step 2: Convert to fraction form
    28,972.28/43,457.96 = 9,250.74/x
  3. Step 3: Cross multiply
    28,972.28x = 43,457.96 × 9,250.74
  4. Step 4: Simplify right side
    28,972.28x = 402,018,288.89
  5. Step 5: Solve for x
    x = 402,018,288.89/28,972.28
  6. Step 6: Final answer
    x = 13,875.96

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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.