Home / 38,782.63-58,174.23-21,242.89

Finding the Fourth Proportional to 38,782.63, 58,174.23 and 21,242.89

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Solution

The fourth proportional to 38,782.63, 58,174.23 and 21,242.89 is: 31,864.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,782.63 : 58,174.23 = 21,242.89 : x
  2. Step 2: Convert to fraction form
    38,782.63/58,174.23 = 21,242.89/x
  3. Step 3: Cross multiply
    38,782.63x = 58,174.23 × 21,242.89
  4. Step 4: Simplify right side
    38,782.63x = 1,235,788,921.10
  5. Step 5: Solve for x
    x = 1,235,788,921.10/38,782.63
  6. Step 6: Final answer
    x = 31,864.49

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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.