Home / 28,165.55-42,289.83-15,709.91

Finding the Fourth Proportional to 28,165.55, 42,289.83 and 15,709.91

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Solution

The fourth proportional to 28,165.55, 42,289.83 and 15,709.91 is: 23,588.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,165.55 : 42,289.83 = 15,709.91 : x
  2. Step 2: Convert to fraction form
    28,165.55/42,289.83 = 15,709.91/x
  3. Step 3: Cross multiply
    28,165.55x = 42,289.83 × 15,709.91
  4. Step 4: Simplify right side
    28,165.55x = 664,369,211.77
  5. Step 5: Solve for x
    x = 664,369,211.77/28,165.55
  6. Step 6: Final answer
    x = 23,588.01

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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.