Home / 31,606.56-47,426.40-20,510.64

Finding the Fourth Proportional to 31,606.56, 47,426.40 and 20,510.64

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Solution

The fourth proportional to 31,606.56, 47,426.40 and 20,510.64 is: 30,776.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,606.56 : 47,426.40 = 20,510.64 : x
  2. Step 2: Convert to fraction form
    31,606.56/47,426.40 = 20,510.64/x
  3. Step 3: Cross multiply
    31,606.56x = 47,426.40 × 20,510.64
  4. Step 4: Simplify right side
    31,606.56x = 972,745,816.90
  5. Step 5: Solve for x
    x = 972,745,816.90/31,606.56
  6. Step 6: Final answer
    x = 30,776.71

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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.