Home / 20,624.51-28,461.84-11,193.07

Finding the Fourth Proportional to 20,624.51, 28,461.84 and 11,193.07

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Solution

The fourth proportional to 20,624.51, 28,461.84 and 11,193.07 is: 15,446.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,624.51 : 28,461.84 = 11,193.07 : x
  2. Step 2: Convert to fraction form
    20,624.51/28,461.84 = 11,193.07/x
  3. Step 3: Cross multiply
    20,624.51x = 28,461.84 × 11,193.07
  4. Step 4: Simplify right side
    20,624.51x = 318,575,367.45
  5. Step 5: Solve for x
    x = 318,575,367.45/20,624.51
  6. Step 6: Final answer
    x = 15,446.45

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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.