Home / 30,588.72-45,880.56-21,667.20

Finding the Fourth Proportional to 30,588.72, 45,880.56 and 21,667.20

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Solution

The fourth proportional to 30,588.72, 45,880.56 and 21,667.20 is: 32,499.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,588.72 : 45,880.56 = 21,667.20 : x
  2. Step 2: Convert to fraction form
    30,588.72/45,880.56 = 21,667.20/x
  3. Step 3: Cross multiply
    30,588.72x = 45,880.56 × 21,667.20
  4. Step 4: Simplify right side
    30,588.72x = 994,103,269.63
  5. Step 5: Solve for x
    x = 994,103,269.63/30,588.72
  6. Step 6: Final answer
    x = 32,499.01

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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.