Home / 21,333.60-29,442.02-11,775.36

Finding the Fourth Proportional to 21,333.60, 29,442.02 and 11,775.36

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Solution

The fourth proportional to 21,333.60, 29,442.02 and 11,775.36 is: 16,250.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,333.60 : 29,442.02 = 11,775.36 : x
  2. Step 2: Convert to fraction form
    21,333.60/29,442.02 = 11,775.36/x
  3. Step 3: Cross multiply
    21,333.60x = 29,442.02 × 11,775.36
  4. Step 4: Simplify right side
    21,333.60x = 346,690,384.63
  5. Step 5: Solve for x
    x = 346,690,384.63/21,333.60
  6. Step 6: Final answer
    x = 16,250.91

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1.5x scale

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.