Home / 28,921.48-43,332.68-19,416.04

Finding the Fourth Proportional to 28,921.48, 43,332.68 and 19,416.04

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Solution

The fourth proportional to 28,921.48, 43,332.68 and 19,416.04 is: 29,090.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,921.48 : 43,332.68 = 19,416.04 : x
  2. Step 2: Convert to fraction form
    28,921.48/43,332.68 = 19,416.04/x
  3. Step 3: Cross multiply
    28,921.48x = 43,332.68 × 19,416.04
  4. Step 4: Simplify right side
    28,921.48x = 841,349,048.19
  5. Step 5: Solve for x
    x = 841,349,048.19/28,921.48
  6. Step 6: Final answer
    x = 29,090.80

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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.