Home / 31,480.23-47,190.66-15,670.32

Finding the Fourth Proportional to 31,480.23, 47,190.66 and 15,670.32

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Solution

The fourth proportional to 31,480.23, 47,190.66 and 15,670.32 is: 23,490.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,480.23 : 47,190.66 = 15,670.32 : x
  2. Step 2: Convert to fraction form
    31,480.23/47,190.66 = 15,670.32/x
  3. Step 3: Cross multiply
    31,480.23x = 47,190.66 × 15,670.32
  4. Step 4: Simplify right side
    31,480.23x = 739,492,743.21
  5. Step 5: Solve for x
    x = 739,492,743.21/31,480.23
  6. Step 6: Final answer
    x = 23,490.70

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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.