Home / 28,062.08-38,724.72-15,486.56

Finding the Fourth Proportional to 28,062.08, 38,724.72 and 15,486.56

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Solution

The fourth proportional to 28,062.08, 38,724.72 and 15,486.56 is: 21,370.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,062.08 : 38,724.72 = 15,486.56 : x
  2. Step 2: Convert to fraction form
    28,062.08/38,724.72 = 15,486.56/x
  3. Step 3: Cross multiply
    28,062.08x = 38,724.72 × 15,486.56
  4. Step 4: Simplify right side
    28,062.08x = 599,712,699.76
  5. Step 5: Solve for x
    x = 599,712,699.76/28,062.08
  6. Step 6: Final answer
    x = 21,370.93

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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.