Home / 19,589.95-27,027.49-12,875.05

Finding the Fourth Proportional to 19,589.95, 27,027.49 and 12,875.05

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Solution

The fourth proportional to 19,589.95, 27,027.49 and 12,875.05 is: 17,763.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,589.95 : 27,027.49 = 12,875.05 : x
  2. Step 2: Convert to fraction form
    19,589.95/27,027.49 = 12,875.05/x
  3. Step 3: Cross multiply
    19,589.95x = 27,027.49 × 12,875.05
  4. Step 4: Simplify right side
    19,589.95x = 347,980,285.12
  5. Step 5: Solve for x
    x = 347,980,285.12/19,589.95
  6. Step 6: Final answer
    x = 17,763.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.