Home / 28,222.17-38,947.80-16,285.47

Finding the Fourth Proportional to 28,222.17, 38,947.80 and 16,285.47

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Solution

The fourth proportional to 28,222.17, 38,947.80 and 16,285.47 is: 22,474.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,222.17 : 38,947.80 = 16,285.47 : x
  2. Step 2: Convert to fraction form
    28,222.17/38,947.80 = 16,285.47/x
  3. Step 3: Cross multiply
    28,222.17x = 38,947.80 × 16,285.47
  4. Step 4: Simplify right side
    28,222.17x = 634,283,228.47
  5. Step 5: Solve for x
    x = 634,283,228.47/28,222.17
  6. Step 6: Final answer
    x = 22,474.64

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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.