Home / 30,711.37-45,981.51-15,685.95

Finding the Fourth Proportional to 30,711.37, 45,981.51 and 15,685.95

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Solution

The fourth proportional to 30,711.37, 45,981.51 and 15,685.95 is: 23,485.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,711.37 : 45,981.51 = 15,685.95 : x
  2. Step 2: Convert to fraction form
    30,711.37/45,981.51 = 15,685.95/x
  3. Step 3: Cross multiply
    30,711.37x = 45,981.51 × 15,685.95
  4. Step 4: Simplify right side
    30,711.37x = 721,263,666.78
  5. Step 5: Solve for x
    x = 721,263,666.78/30,711.37
  6. Step 6: Final answer
    x = 23,485.23

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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.