Home / 21,153.90-31,733.01-5,572.74

Finding the Fourth Proportional to 21,153.90, 31,733.01 and 5,572.74

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Solution

The fourth proportional to 21,153.90, 31,733.01 and 5,572.74 is: 8,359.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,153.90 : 31,733.01 = 5,572.74 : x
  2. Step 2: Convert to fraction form
    21,153.90/31,733.01 = 5,572.74/x
  3. Step 3: Cross multiply
    21,153.90x = 31,733.01 × 5,572.74
  4. Step 4: Simplify right side
    21,153.90x = 176,839,814.15
  5. Step 5: Solve for x
    x = 176,839,814.15/21,153.90
  6. Step 6: Final answer
    x = 8,359.68

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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.