Home / 58,307.28-87,468.09-20,871.33

Finding the Fourth Proportional to 58,307.28, 87,468.09 and 20,871.33

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Solution

The fourth proportional to 58,307.28, 87,468.09 and 20,871.33 is: 31,309.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,307.28 : 87,468.09 = 20,871.33 : x
  2. Step 2: Convert to fraction form
    58,307.28/87,468.09 = 20,871.33/x
  3. Step 3: Cross multiply
    58,307.28x = 87,468.09 × 20,871.33
  4. Step 4: Simplify right side
    58,307.28x = 1,825,575,370.86
  5. Step 5: Solve for x
    x = 1,825,575,370.86/58,307.28
  6. Step 6: Final answer
    x = 31,309.56

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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.