Home / 20,369.34-28,108.17-12,410.28

Finding the Fourth Proportional to 20,369.34, 28,108.17 and 12,410.28

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Solution

The fourth proportional to 20,369.34, 28,108.17 and 12,410.28 is: 17,125.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,369.34 : 28,108.17 = 12,410.28 : x
  2. Step 2: Convert to fraction form
    20,369.34/28,108.17 = 12,410.28/x
  3. Step 3: Cross multiply
    20,369.34x = 28,108.17 × 12,410.28
  4. Step 4: Simplify right side
    20,369.34x = 348,830,259.99
  5. Step 5: Solve for x
    x = 348,830,259.99/20,369.34
  6. Step 6: Final answer
    x = 17,125.26

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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.