Home / 31,800.82-47,700.20-14,025.96

Finding the Fourth Proportional to 31,800.82, 47,700.20 and 14,025.96

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Solution

The fourth proportional to 31,800.82, 47,700.20 and 14,025.96 is: 21,038.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,800.82 : 47,700.20 = 14,025.96 : x
  2. Step 2: Convert to fraction form
    31,800.82/47,700.20 = 14,025.96/x
  3. Step 3: Cross multiply
    31,800.82x = 47,700.20 × 14,025.96
  4. Step 4: Simplify right side
    31,800.82x = 669,041,097.19
  5. Step 5: Solve for x
    x = 669,041,097.19/31,800.82
  6. Step 6: Final answer
    x = 21,038.49

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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.