Home / 28,485.11-42,727.47-11,618.05

Finding the Fourth Proportional to 28,485.11, 42,727.47 and 11,618.05

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Solution

The fourth proportional to 28,485.11, 42,727.47 and 11,618.05 is: 17,427.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,485.11 : 42,727.47 = 11,618.05 : x
  2. Step 2: Convert to fraction form
    28,485.11/42,727.47 = 11,618.05/x
  3. Step 3: Cross multiply
    28,485.11x = 42,727.47 × 11,618.05
  4. Step 4: Simplify right side
    28,485.11x = 496,409,882.83
  5. Step 5: Solve for x
    x = 496,409,882.83/28,485.11
  6. Step 6: Final answer
    x = 17,427.00

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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.