Home / 31,513.64-43,490.54-18,084.79

Finding the Fourth Proportional to 31,513.64, 43,490.54 and 18,084.79

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Solution

The fourth proportional to 31,513.64, 43,490.54 and 18,084.79 is: 24,957.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,513.64 : 43,490.54 = 18,084.79 : x
  2. Step 2: Convert to fraction form
    31,513.64/43,490.54 = 18,084.79/x
  3. Step 3: Cross multiply
    31,513.64x = 43,490.54 × 18,084.79
  4. Step 4: Simplify right side
    31,513.64x = 786,516,975.01
  5. Step 5: Solve for x
    x = 786,516,975.01/31,513.64
  6. Step 6: Final answer
    x = 24,957.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.