Home / 21,342.58-32,013.88-5,760.20

Finding the Fourth Proportional to 21,342.58, 32,013.88 and 5,760.20

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Solution

The fourth proportional to 21,342.58, 32,013.88 and 5,760.20 is: 8,640.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,342.58 : 32,013.88 = 5,760.20 : x
  2. Step 2: Convert to fraction form
    21,342.58/32,013.88 = 5,760.20/x
  3. Step 3: Cross multiply
    21,342.58x = 32,013.88 × 5,760.20
  4. Step 4: Simplify right side
    21,342.58x = 184,406,417.21
  5. Step 5: Solve for x
    x = 184,406,417.21/21,342.58
  6. Step 6: Final answer
    x = 8,640.31

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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.