Home / 35,619.69-53,418.59-11,921.67

Finding the Fourth Proportional to 35,619.69, 53,418.59 and 11,921.67

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Solution

The fourth proportional to 35,619.69, 53,418.59 and 11,921.67 is: 17,878.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,619.69 : 53,418.59 = 11,921.67 : x
  2. Step 2: Convert to fraction form
    35,619.69/53,418.59 = 11,921.67/x
  3. Step 3: Cross multiply
    35,619.69x = 53,418.59 × 11,921.67
  4. Step 4: Simplify right side
    35,619.69x = 636,838,758.61
  5. Step 5: Solve for x
    x = 636,838,758.61/35,619.69
  6. Step 6: Final answer
    x = 17,878.84

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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.