Home / 20,567.70-30,854.79-7,423.29

Finding the Fourth Proportional to 20,567.70, 30,854.79 and 7,423.29

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Solution

The fourth proportional to 20,567.70, 30,854.79 and 7,423.29 is: 11,136.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,567.70 : 30,854.79 = 7,423.29 : x
  2. Step 2: Convert to fraction form
    20,567.70/30,854.79 = 7,423.29/x
  3. Step 3: Cross multiply
    20,567.70x = 30,854.79 × 7,423.29
  4. Step 4: Simplify right side
    20,567.70x = 229,044,054.06
  5. Step 5: Solve for x
    x = 229,044,054.06/20,567.70
  6. Step 6: Final answer
    x = 11,136.10

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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.