Home / 21,417.67-32,127.75-8,270.11

Finding the Fourth Proportional to 21,417.67, 32,127.75 and 8,270.11

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Solution

The fourth proportional to 21,417.67, 32,127.75 and 8,270.11 is: 12,405.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,417.67 : 32,127.75 = 8,270.11 : x
  2. Step 2: Convert to fraction form
    21,417.67/32,127.75 = 8,270.11/x
  3. Step 3: Cross multiply
    21,417.67x = 32,127.75 × 8,270.11
  4. Step 4: Simplify right side
    21,417.67x = 265,700,026.55
  5. Step 5: Solve for x
    x = 265,700,026.55/21,417.67
  6. Step 6: Final answer
    x = 12,405.65

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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.