Home / 28,485.97-42,755.76-14,456.07

Finding the Fourth Proportional to 28,485.97, 42,755.76 and 14,456.07

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Solution

The fourth proportional to 28,485.97, 42,755.76 and 14,456.07 is: 21,697.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,485.97 : 42,755.76 = 14,456.07 : x
  2. Step 2: Convert to fraction form
    28,485.97/42,755.76 = 14,456.07/x
  3. Step 3: Cross multiply
    28,485.97x = 42,755.76 × 14,456.07
  4. Step 4: Simplify right side
    28,485.97x = 618,080,259.46
  5. Step 5: Solve for x
    x = 618,080,259.46/28,485.97
  6. Step 6: Final answer
    x = 21,697.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.