Home / 22,770.58-31,423.56-12,699.70

Finding the Fourth Proportional to 22,770.58, 31,423.56 and 12,699.70

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Solution

The fourth proportional to 22,770.58, 31,423.56 and 12,699.70 is: 17,525.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,770.58 : 31,423.56 = 12,699.70 : x
  2. Step 2: Convert to fraction form
    22,770.58/31,423.56 = 12,699.70/x
  3. Step 3: Cross multiply
    22,770.58x = 31,423.56 × 12,699.70
  4. Step 4: Simplify right side
    22,770.58x = 399,069,784.93
  5. Step 5: Solve for x
    x = 399,069,784.93/22,770.58
  6. Step 6: Final answer
    x = 17,525.68

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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.