Home / 21,784.02-30,057.36-14,241.40

Finding the Fourth Proportional to 21,784.02, 30,057.36 and 14,241.40

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Solution

The fourth proportional to 21,784.02, 30,057.36 and 14,241.40 is: 19,650.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,784.02 : 30,057.36 = 14,241.40 : x
  2. Step 2: Convert to fraction form
    21,784.02/30,057.36 = 14,241.40/x
  3. Step 3: Cross multiply
    21,784.02x = 30,057.36 × 14,241.40
  4. Step 4: Simplify right side
    21,784.02x = 428,058,886.70
  5. Step 5: Solve for x
    x = 428,058,886.70/21,784.02
  6. Step 6: Final answer
    x = 19,650.13

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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.