Home / 21,373.76-29,337.78-20,460.35

Finding the Fourth Proportional to 21,373.76, 29,337.78 and 20,460.35

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Solution

The fourth proportional to 21,373.76, 29,337.78 and 20,460.35 is: 28,084.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,373.76 : 29,337.78 = 20,460.35 : x
  2. Step 2: Convert to fraction form
    21,373.76/29,337.78 = 20,460.35/x
  3. Step 3: Cross multiply
    21,373.76x = 29,337.78 × 20,460.35
  4. Step 4: Simplify right side
    21,373.76x = 600,261,247.02
  5. Step 5: Solve for x
    x = 600,261,247.02/21,373.76
  6. Step 6: Final answer
    x = 28,084.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.