Home / 18,555.60-27,800.98-15,455.52

Finding the Fourth Proportional to 18,555.60, 27,800.98 and 15,455.52

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Solution

The fourth proportional to 18,555.60, 27,800.98 and 15,455.52 is: 23,156.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,555.60 : 27,800.98 = 15,455.52 : x
  2. Step 2: Convert to fraction form
    18,555.60/27,800.98 = 15,455.52/x
  3. Step 3: Cross multiply
    18,555.60x = 27,800.98 × 15,455.52
  4. Step 4: Simplify right side
    18,555.60x = 429,678,602.41
  5. Step 5: Solve for x
    x = 429,678,602.41/18,555.60
  6. Step 6: Final answer
    x = 23,156.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.