Home / 31,332.42-47,015.64-20,776.50

Finding the Fourth Proportional to 31,332.42, 47,015.64 and 20,776.50

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Solution

The fourth proportional to 31,332.42, 47,015.64 and 20,776.50 is: 31,176.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,332.42 : 47,015.64 = 20,776.50 : x
  2. Step 2: Convert to fraction form
    31,332.42/47,015.64 = 20,776.50/x
  3. Step 3: Cross multiply
    31,332.42x = 47,015.64 × 20,776.50
  4. Step 4: Simplify right side
    31,332.42x = 976,820,444.46
  5. Step 5: Solve for x
    x = 976,820,444.46/31,332.42
  6. Step 6: Final answer
    x = 31,176.03

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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.