Home / 31,670.58-47,505.51-12,960.66

Finding the Fourth Proportional to 31,670.58, 47,505.51 and 12,960.66

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Solution

The fourth proportional to 31,670.58, 47,505.51 and 12,960.66 is: 19,440.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,670.58 : 47,505.51 = 12,960.66 : x
  2. Step 2: Convert to fraction form
    31,670.58/47,505.51 = 12,960.66/x
  3. Step 3: Cross multiply
    31,670.58x = 47,505.51 × 12,960.66
  4. Step 4: Simplify right side
    31,670.58x = 615,702,763.24
  5. Step 5: Solve for x
    x = 615,702,763.24/31,670.58
  6. Step 6: Final answer
    x = 19,440.84

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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.