Home / 26,399.80-39,607.04-21,457.20

Finding the Fourth Proportional to 26,399.80, 39,607.04 and 21,457.20

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Solution

The fourth proportional to 26,399.80, 39,607.04 and 21,457.20 is: 32,191.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,399.80 : 39,607.04 = 21,457.20 : x
  2. Step 2: Convert to fraction form
    26,399.80/39,607.04 = 21,457.20/x
  3. Step 3: Cross multiply
    26,399.80x = 39,607.04 × 21,457.20
  4. Step 4: Simplify right side
    26,399.80x = 849,856,178.69
  5. Step 5: Solve for x
    x = 849,856,178.69/26,399.80
  6. Step 6: Final answer
    x = 32,191.77

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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.