Home / 28,530.08-42,798.32-7,753.76

Finding the Fourth Proportional to 28,530.08, 42,798.32 and 7,753.76

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Solution

The fourth proportional to 28,530.08, 42,798.32 and 7,753.76 is: 11,631.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,530.08 : 42,798.32 = 7,753.76 : x
  2. Step 2: Convert to fraction form
    28,530.08/42,798.32 = 7,753.76/x
  3. Step 3: Cross multiply
    28,530.08x = 42,798.32 × 7,753.76
  4. Step 4: Simplify right side
    28,530.08x = 331,847,901.68
  5. Step 5: Solve for x
    x = 331,847,901.68/28,530.08
  6. Step 6: Final answer
    x = 11,631.51

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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.