Home / 20,726.04-28,601.90-11,294.60

Finding the Fourth Proportional to 20,726.04, 28,601.90 and 11,294.60

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Solution

The fourth proportional to 20,726.04, 28,601.90 and 11,294.60 is: 15,586.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,726.04 : 28,601.90 = 11,294.60 : x
  2. Step 2: Convert to fraction form
    20,726.04/28,601.90 = 11,294.60/x
  3. Step 3: Cross multiply
    20,726.04x = 28,601.90 × 11,294.60
  4. Step 4: Simplify right side
    20,726.04x = 323,047,019.74
  5. Step 5: Solve for x
    x = 323,047,019.74/20,726.04
  6. Step 6: Final answer
    x = 15,586.53

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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.