Home / 28,110.08-42,165.12-11,477.95

Finding the Fourth Proportional to 28,110.08, 42,165.12 and 11,477.95

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Solution

The fourth proportional to 28,110.08, 42,165.12 and 11,477.95 is: 17,216.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,110.08 : 42,165.12 = 11,477.95 : x
  2. Step 2: Convert to fraction form
    28,110.08/42,165.12 = 11,477.95/x
  3. Step 3: Cross multiply
    28,110.08x = 42,165.12 × 11,477.95
  4. Step 4: Simplify right side
    28,110.08x = 483,969,033.69
  5. Step 5: Solve for x
    x = 483,969,033.69/28,110.08
  6. Step 6: Final answer
    x = 17,216.92

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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.