Home / 31,353.70-47,030.64-12,628.12

Finding the Fourth Proportional to 31,353.70, 47,030.64 and 12,628.12

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Solution

The fourth proportional to 31,353.70, 47,030.64 and 12,628.12 is: 18,942.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,353.70 : 47,030.64 = 12,628.12 : x
  2. Step 2: Convert to fraction form
    31,353.70/47,030.64 = 12,628.12/x
  3. Step 3: Cross multiply
    31,353.70x = 47,030.64 × 12,628.12
  4. Step 4: Simplify right side
    31,353.70x = 593,908,565.60
  5. Step 5: Solve for x
    x = 593,908,565.60/31,353.70
  6. Step 6: Final answer
    x = 18,942.22

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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.