Home / 35,479.28-53,220.54-12,105.92

Finding the Fourth Proportional to 35,479.28, 53,220.54 and 12,105.92

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Solution

The fourth proportional to 35,479.28, 53,220.54 and 12,105.92 is: 18,159.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,479.28 : 53,220.54 = 12,105.92 : x
  2. Step 2: Convert to fraction form
    35,479.28/53,220.54 = 12,105.92/x
  3. Step 3: Cross multiply
    35,479.28x = 53,220.54 × 12,105.92
  4. Step 4: Simplify right side
    35,479.28x = 644,283,599.60
  5. Step 5: Solve for x
    x = 644,283,599.60/35,479.28
  6. Step 6: Final answer
    x = 18,159.43

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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.