Home / 22,492.67-31,039.70-12,421.79

Finding the Fourth Proportional to 22,492.67, 31,039.70 and 12,421.79

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Solution

The fourth proportional to 22,492.67, 31,039.70 and 12,421.79 is: 17,141.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,492.67 : 31,039.70 = 12,421.79 : x
  2. Step 2: Convert to fraction form
    22,492.67/31,039.70 = 12,421.79/x
  3. Step 3: Cross multiply
    22,492.67x = 31,039.70 × 12,421.79
  4. Step 4: Simplify right side
    22,492.67x = 385,568,417.76
  5. Step 5: Solve for x
    x = 385,568,417.76/22,492.67
  6. Step 6: Final answer
    x = 17,141.96

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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.