Home / 22,599.45-31,187.48-12,528.09

Finding the Fourth Proportional to 22,599.45, 31,187.48 and 12,528.09

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Solution

The fourth proportional to 22,599.45, 31,187.48 and 12,528.09 is: 17,288.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,599.45 : 31,187.48 = 12,528.09 : x
  2. Step 2: Convert to fraction form
    22,599.45/31,187.48 = 12,528.09/x
  3. Step 3: Cross multiply
    22,599.45x = 31,187.48 × 12,528.09
  4. Step 4: Simplify right side
    22,599.45x = 390,719,493.67
  5. Step 5: Solve for x
    x = 390,719,493.67/22,599.45
  6. Step 6: Final answer
    x = 17,288.89

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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.