Home / 21,720.59-32,585.01-7,485.29

Finding the Fourth Proportional to 21,720.59, 32,585.01 and 7,485.29

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Solution

The fourth proportional to 21,720.59, 32,585.01 and 7,485.29 is: 11,229.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,720.59 : 32,585.01 = 7,485.29 : x
  2. Step 2: Convert to fraction form
    21,720.59/32,585.01 = 7,485.29/x
  3. Step 3: Cross multiply
    21,720.59x = 32,585.01 × 7,485.29
  4. Step 4: Simplify right side
    21,720.59x = 243,908,249.50
  5. Step 5: Solve for x
    x = 243,908,249.50/21,720.59
  6. Step 6: Final answer
    x = 11,229.36

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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.