Home / 31,340.96-47,011.02-12,625.76

Finding the Fourth Proportional to 31,340.96, 47,011.02 and 12,625.76

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Solution

The fourth proportional to 31,340.96, 47,011.02 and 12,625.76 is: 18,938.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,340.96 : 47,011.02 = 12,625.76 : x
  2. Step 2: Convert to fraction form
    31,340.96/47,011.02 = 12,625.76/x
  3. Step 3: Cross multiply
    31,340.96x = 47,011.02 × 12,625.76
  4. Step 4: Simplify right side
    31,340.96x = 593,549,855.88
  5. Step 5: Solve for x
    x = 593,549,855.88/31,340.96
  6. Step 6: Final answer
    x = 18,938.47

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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.