Home / 21,513.12-32,270.48-5,931.92

Finding the Fourth Proportional to 21,513.12, 32,270.48 and 5,931.92

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Solution

The fourth proportional to 21,513.12, 32,270.48 and 5,931.92 is: 8,898.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,513.12 : 32,270.48 = 5,931.92 : x
  2. Step 2: Convert to fraction form
    21,513.12/32,270.48 = 5,931.92/x
  3. Step 3: Cross multiply
    21,513.12x = 32,270.48 × 5,931.92
  4. Step 4: Simplify right side
    21,513.12x = 191,425,905.72
  5. Step 5: Solve for x
    x = 191,425,905.72/21,513.12
  6. Step 6: Final answer
    x = 8,898.10

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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.