Home / 21,334.79-29,442.02-11,903.36

Finding the Fourth Proportional to 21,334.79, 29,442.02 and 11,903.36

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Solution

The fourth proportional to 21,334.79, 29,442.02 and 11,903.36 is: 16,426.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,334.79 : 29,442.02 = 11,903.36 : x
  2. Step 2: Convert to fraction form
    21,334.79/29,442.02 = 11,903.36/x
  3. Step 3: Cross multiply
    21,334.79x = 29,442.02 × 11,903.36
  4. Step 4: Simplify right side
    21,334.79x = 350,458,756.46
  5. Step 5: Solve for x
    x = 350,458,756.46/21,334.79
  6. Step 6: Final answer
    x = 16,426.63

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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.