Home / 31,460.12-47,206.60-12,753.98

Finding the Fourth Proportional to 31,460.12, 47,206.60 and 12,753.98

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Solution

The fourth proportional to 31,460.12, 47,206.60 and 12,753.98 is: 19,137.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,460.12 : 47,206.60 = 12,753.98 : x
  2. Step 2: Convert to fraction form
    31,460.12/47,206.60 = 12,753.98/x
  3. Step 3: Cross multiply
    31,460.12x = 47,206.60 × 12,753.98
  4. Step 4: Simplify right side
    31,460.12x = 602,072,032.27
  5. Step 5: Solve for x
    x = 602,072,032.27/31,460.12
  6. Step 6: Final answer
    x = 19,137.63

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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.