Home / 28,060.55-38,723.78-15,313.83

Finding the Fourth Proportional to 28,060.55, 38,723.78 and 15,313.83

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Solution

The fourth proportional to 28,060.55, 38,723.78 and 15,313.83 is: 21,133.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,060.55 : 38,723.78 = 15,313.83 : x
  2. Step 2: Convert to fraction form
    28,060.55/38,723.78 = 15,313.83/x
  3. Step 3: Cross multiply
    28,060.55x = 38,723.78 × 15,313.83
  4. Step 4: Simplify right side
    28,060.55x = 593,009,422.16
  5. Step 5: Solve for x
    x = 593,009,422.16/28,060.55
  6. Step 6: Final answer
    x = 21,133.21

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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.