Home / 21,945.50-32,918.56-9,457.74

Finding the Fourth Proportional to 21,945.50, 32,918.56 and 9,457.74

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Solution

The fourth proportional to 21,945.50, 32,918.56 and 9,457.74 is: 14,186.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,945.50 : 32,918.56 = 9,457.74 : x
  2. Step 2: Convert to fraction form
    21,945.50/32,918.56 = 9,457.74/x
  3. Step 3: Cross multiply
    21,945.50x = 32,918.56 × 9,457.74
  4. Step 4: Simplify right side
    21,945.50x = 311,335,181.65
  5. Step 5: Solve for x
    x = 311,335,181.65/21,945.50
  6. Step 6: Final answer
    x = 14,186.74

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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.