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Finding the Fourth Proportional to 32,661.72, 45,047.76 and 21,903.03

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Solution

The fourth proportional to 32,661.72, 45,047.76 and 21,903.03 is: 30,209.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,661.72 : 45,047.76 = 21,903.03 : x
  2. Step 2: Convert to fraction form
    32,661.72/45,047.76 = 21,903.03/x
  3. Step 3: Cross multiply
    32,661.72x = 45,047.76 × 21,903.03
  4. Step 4: Simplify right side
    32,661.72x = 986,682,438.71
  5. Step 5: Solve for x
    x = 986,682,438.71/32,661.72
  6. Step 6: Final answer
    x = 30,209.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.