Home / 20,359.17-28,095.68-12,401.43

Finding the Fourth Proportional to 20,359.17, 28,095.68 and 12,401.43

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Solution

The fourth proportional to 20,359.17, 28,095.68 and 12,401.43 is: 17,113.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,359.17 : 28,095.68 = 12,401.43 : x
  2. Step 2: Convert to fraction form
    20,359.17/28,095.68 = 12,401.43/x
  3. Step 3: Cross multiply
    20,359.17x = 28,095.68 × 12,401.43
  4. Step 4: Simplify right side
    20,359.17x = 348,426,608.82
  5. Step 5: Solve for x
    x = 348,426,608.82/20,359.17
  6. Step 6: Final answer
    x = 17,113.99

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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.