Home / 21,672.54-32,513.36-12,316.89

Finding the Fourth Proportional to 21,672.54, 32,513.36 and 12,316.89

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Solution

The fourth proportional to 21,672.54, 32,513.36 and 12,316.89 is: 18,477.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,672.54 : 32,513.36 = 12,316.89 : x
  2. Step 2: Convert to fraction form
    21,672.54/32,513.36 = 12,316.89/x
  3. Step 3: Cross multiply
    21,672.54x = 32,513.36 × 12,316.89
  4. Step 4: Simplify right side
    21,672.54x = 400,463,417.07
  5. Step 5: Solve for x
    x = 400,463,417.07/21,672.54
  6. Step 6: Final answer
    x = 18,477.92

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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.