Home / 32,667.40-45,038.68-21,161.84

Finding the Fourth Proportional to 32,667.40, 45,038.68 and 21,161.84

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Solution

The fourth proportional to 32,667.40, 45,038.68 and 21,161.84 is: 29,175.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,667.40 : 45,038.68 = 21,161.84 : x
  2. Step 2: Convert to fraction form
    32,667.40/45,038.68 = 21,161.84/x
  3. Step 3: Cross multiply
    32,667.40x = 45,038.68 × 21,161.84
  4. Step 4: Simplify right side
    32,667.40x = 953,101,339.97
  5. Step 5: Solve for x
    x = 953,101,339.97/32,667.40
  6. Step 6: Final answer
    x = 29,175.92

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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.