Home / 20,504.54-28,303.23-12,749.42

Finding the Fourth Proportional to 20,504.54, 28,303.23 and 12,749.42

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Solution

The fourth proportional to 20,504.54, 28,303.23 and 12,749.42 is: 17,598.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,504.54 : 28,303.23 = 12,749.42 : x
  2. Step 2: Convert to fraction form
    20,504.54/28,303.23 = 12,749.42/x
  3. Step 3: Cross multiply
    20,504.54x = 28,303.23 × 12,749.42
  4. Step 4: Simplify right side
    20,504.54x = 360,849,625.11
  5. Step 5: Solve for x
    x = 360,849,625.11/20,504.54
  6. Step 6: Final answer
    x = 17,598.53

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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.