Home / 21,348.54-29,437.02-13,784.93

Finding the Fourth Proportional to 21,348.54, 29,437.02 and 13,784.93

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Solution

The fourth proportional to 21,348.54, 29,437.02 and 13,784.93 is: 19,007.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,348.54 : 29,437.02 = 13,784.93 : x
  2. Step 2: Convert to fraction form
    21,348.54/29,437.02 = 13,784.93/x
  3. Step 3: Cross multiply
    21,348.54x = 29,437.02 × 13,784.93
  4. Step 4: Simplify right side
    21,348.54x = 405,787,388.90
  5. Step 5: Solve for x
    x = 405,787,388.90/21,348.54
  6. Step 6: Final answer
    x = 19,007.74

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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.