Home / 31,499.64-47,242.62-9,309.24

Finding the Fourth Proportional to 31,499.64, 47,242.62 and 9,309.24

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Solution

The fourth proportional to 31,499.64, 47,242.62 and 9,309.24 is: 13,961.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,499.64 : 47,242.62 = 9,309.24 : x
  2. Step 2: Convert to fraction form
    31,499.64/47,242.62 = 9,309.24/x
  3. Step 3: Cross multiply
    31,499.64x = 47,242.62 × 9,309.24
  4. Step 4: Simplify right side
    31,499.64x = 439,792,887.81
  5. Step 5: Solve for x
    x = 439,792,887.81/31,499.64
  6. Step 6: Final answer
    x = 13,961.84

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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.