Home / 20,533.58-28,337.30-11,580.89

Finding the Fourth Proportional to 20,533.58, 28,337.30 and 11,580.89

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Solution

The fourth proportional to 20,533.58, 28,337.30 and 11,580.89 is: 15,982.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,533.58 : 28,337.30 = 11,580.89 : x
  2. Step 2: Convert to fraction form
    20,533.58/28,337.30 = 11,580.89/x
  3. Step 3: Cross multiply
    20,533.58x = 28,337.30 × 11,580.89
  4. Step 4: Simplify right side
    20,533.58x = 328,170,954.61
  5. Step 5: Solve for x
    x = 328,170,954.61/20,533.58
  6. Step 6: Final answer
    x = 15,982.16

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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.