Home / 31,489.72-43,457.64-18,060.88

Finding the Fourth Proportional to 31,489.72, 43,457.64 and 18,060.88

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Solution

The fourth proportional to 31,489.72, 43,457.64 and 18,060.88 is: 24,925.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,489.72 : 43,457.64 = 18,060.88 : x
  2. Step 2: Convert to fraction form
    31,489.72/43,457.64 = 18,060.88/x
  3. Step 3: Cross multiply
    31,489.72x = 43,457.64 × 18,060.88
  4. Step 4: Simplify right side
    31,489.72x = 784,883,221.12
  5. Step 5: Solve for x
    x = 784,883,221.12/31,489.72
  6. Step 6: Final answer
    x = 24,925.06

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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.