Home / 21,877.07-30,236.94-19,285.47

Finding the Fourth Proportional to 21,877.07, 30,236.94 and 19,285.47

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Solution

The fourth proportional to 21,877.07, 30,236.94 and 19,285.47 is: 26,655.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,877.07 : 30,236.94 = 19,285.47 : x
  2. Step 2: Convert to fraction form
    21,877.07/30,236.94 = 19,285.47/x
  3. Step 3: Cross multiply
    21,877.07x = 30,236.94 × 19,285.47
  4. Step 4: Simplify right side
    21,877.07x = 583,133,599.26
  5. Step 5: Solve for x
    x = 583,133,599.26/21,877.07
  6. Step 6: Final answer
    x = 26,655.02

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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.