Home / 28,207.63-42,313.57-9,487.72

Finding the Fourth Proportional to 28,207.63, 42,313.57 and 9,487.72

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Solution

The fourth proportional to 28,207.63, 42,313.57 and 9,487.72 is: 14,232.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,207.63 : 42,313.57 = 9,487.72 : x
  2. Step 2: Convert to fraction form
    28,207.63/42,313.57 = 9,487.72/x
  3. Step 3: Cross multiply
    28,207.63x = 42,313.57 × 9,487.72
  4. Step 4: Simplify right side
    28,207.63x = 401,459,304.36
  5. Step 5: Solve for x
    x = 401,459,304.36/28,207.63
  6. Step 6: Final answer
    x = 14,232.29

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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.