Home / 20,797.61-31,152.26-19,310.45

Finding the Fourth Proportional to 20,797.61, 31,152.26 and 19,310.45

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Solution

The fourth proportional to 20,797.61, 31,152.26 and 19,310.45 is: 28,924.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,797.61 : 31,152.26 = 19,310.45 : x
  2. Step 2: Convert to fraction form
    20,797.61/31,152.26 = 19,310.45/x
  3. Step 3: Cross multiply
    20,797.61x = 31,152.26 × 19,310.45
  4. Step 4: Simplify right side
    20,797.61x = 601,564,051.63
  5. Step 5: Solve for x
    x = 601,564,051.63/20,797.61
  6. Step 6: Final answer
    x = 28,924.68

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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.