Home / 20,929.02-28,881.27-11,497.02

Finding the Fourth Proportional to 20,929.02, 28,881.27 and 11,497.02

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Solution

The fourth proportional to 20,929.02, 28,881.27 and 11,497.02 is: 15,865.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,929.02 : 28,881.27 = 11,497.02 : x
  2. Step 2: Convert to fraction form
    20,929.02/28,881.27 = 11,497.02/x
  3. Step 3: Cross multiply
    20,929.02x = 28,881.27 × 11,497.02
  4. Step 4: Simplify right side
    20,929.02x = 332,048,538.82
  5. Step 5: Solve for x
    x = 332,048,538.82/20,929.02
  6. Step 6: Final answer
    x = 15,865.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.