Home / 28,555.83-42,834.72-9,835.71

Finding the Fourth Proportional to 28,555.83, 42,834.72 and 9,835.71

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Solution

The fourth proportional to 28,555.83, 42,834.72 and 9,835.71 is: 14,753.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,555.83 : 42,834.72 = 9,835.71 : x
  2. Step 2: Convert to fraction form
    28,555.83/42,834.72 = 9,835.71/x
  3. Step 3: Cross multiply
    28,555.83x = 42,834.72 × 9,835.71
  4. Step 4: Simplify right side
    28,555.83x = 421,309,883.85
  5. Step 5: Solve for x
    x = 421,309,883.85/28,555.83
  6. Step 6: Final answer
    x = 14,753.90

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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.