Home / 21,212.04-31,814.15-8,061.24

Finding the Fourth Proportional to 21,212.04, 31,814.15 and 8,061.24

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Solution

The fourth proportional to 21,212.04, 31,814.15 and 8,061.24 is: 12,090.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,212.04 : 31,814.15 = 8,061.24 : x
  2. Step 2: Convert to fraction form
    21,212.04/31,814.15 = 8,061.24/x
  3. Step 3: Cross multiply
    21,212.04x = 31,814.15 × 8,061.24
  4. Step 4: Simplify right side
    21,212.04x = 256,461,458.24
  5. Step 5: Solve for x
    x = 256,461,458.24/21,212.04
  6. Step 6: Final answer
    x = 12,090.37

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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.