Home / 20,358.34-28,094.24-11,405.91

Finding the Fourth Proportional to 20,358.34, 28,094.24 and 11,405.91

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Solution

The fourth proportional to 20,358.34, 28,094.24 and 11,405.91 is: 15,740.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,358.34 : 28,094.24 = 11,405.91 : x
  2. Step 2: Convert to fraction form
    20,358.34/28,094.24 = 11,405.91/x
  3. Step 3: Cross multiply
    20,358.34x = 28,094.24 × 11,405.91
  4. Step 4: Simplify right side
    20,358.34x = 320,440,506.83
  5. Step 5: Solve for x
    x = 320,440,506.83/20,358.34
  6. Step 6: Final answer
    x = 15,740.01

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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.