Home / 18,580.31-25,642.62-10,621.02

Finding the Fourth Proportional to 18,580.31, 25,642.62 and 10,621.02

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Solution

The fourth proportional to 18,580.31, 25,642.62 and 10,621.02 is: 14,658.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,580.31 : 25,642.62 = 10,621.02 : x
  2. Step 2: Convert to fraction form
    18,580.31/25,642.62 = 10,621.02/x
  3. Step 3: Cross multiply
    18,580.31x = 25,642.62 × 10,621.02
  4. Step 4: Simplify right side
    18,580.31x = 272,350,779.87
  5. Step 5: Solve for x
    x = 272,350,779.87/18,580.31
  6. Step 6: Final answer
    x = 14,658.04

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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.