Home / 31,607.96-47,384.07-12,903.71

Finding the Fourth Proportional to 31,607.96, 47,384.07 and 12,903.71

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Solution

The fourth proportional to 31,607.96, 47,384.07 and 12,903.71 is: 19,344.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,607.96 : 47,384.07 = 12,903.71 : x
  2. Step 2: Convert to fraction form
    31,607.96/47,384.07 = 12,903.71/x
  3. Step 3: Cross multiply
    31,607.96x = 47,384.07 × 12,903.71
  4. Step 4: Simplify right side
    31,607.96x = 611,430,060.98
  5. Step 5: Solve for x
    x = 611,430,060.98/31,607.96
  6. Step 6: Final answer
    x = 19,344.18

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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.