Home / 22,368.78-30,836.40-15,633.50

Finding the Fourth Proportional to 22,368.78, 30,836.40 and 15,633.50

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Solution

The fourth proportional to 22,368.78, 30,836.40 and 15,633.50 is: 21,551.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,368.78 : 30,836.40 = 15,633.50 : x
  2. Step 2: Convert to fraction form
    22,368.78/30,836.40 = 15,633.50/x
  3. Step 3: Cross multiply
    22,368.78x = 30,836.40 × 15,633.50
  4. Step 4: Simplify right side
    22,368.78x = 482,080,859.40
  5. Step 5: Solve for x
    x = 482,080,859.40/22,368.78
  6. Step 6: Final answer
    x = 21,551.50

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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.