Home / 18,596.32-28,022.40-15,381.76

Finding the Fourth Proportional to 18,596.32, 28,022.40 and 15,381.76

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Solution

The fourth proportional to 18,596.32, 28,022.40 and 15,381.76 is: 23,178.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,596.32 : 28,022.40 = 15,381.76 : x
  2. Step 2: Convert to fraction form
    18,596.32/28,022.40 = 15,381.76/x
  3. Step 3: Cross multiply
    18,596.32x = 28,022.40 × 15,381.76
  4. Step 4: Simplify right side
    18,596.32x = 431,033,831.42
  5. Step 5: Solve for x
    x = 431,033,831.42/18,596.32
  6. Step 6: Final answer
    x = 23,178.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.