Home / 28,572.06-42,864.90-11,922.84

Finding the Fourth Proportional to 28,572.06, 42,864.90 and 11,922.84

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Solution

The fourth proportional to 28,572.06, 42,864.90 and 11,922.84 is: 17,887.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,572.06 : 42,864.90 = 11,922.84 : x
  2. Step 2: Convert to fraction form
    28,572.06/42,864.90 = 11,922.84/x
  3. Step 3: Cross multiply
    28,572.06x = 42,864.90 × 11,922.84
  4. Step 4: Simplify right side
    28,572.06x = 511,071,344.32
  5. Step 5: Solve for x
    x = 511,071,344.32/28,572.06
  6. Step 6: Final answer
    x = 17,887.10

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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.