Home / 28,457.46-39,263.94-19,507.77

Finding the Fourth Proportional to 28,457.46, 39,263.94 and 19,507.77

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Solution

The fourth proportional to 28,457.46, 39,263.94 and 19,507.77 is: 26,915.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,457.46 : 39,263.94 = 19,507.77 : x
  2. Step 2: Convert to fraction form
    28,457.46/39,263.94 = 19,507.77/x
  3. Step 3: Cross multiply
    28,457.46x = 39,263.94 × 19,507.77
  4. Step 4: Simplify right side
    28,457.46x = 765,951,910.81
  5. Step 5: Solve for x
    x = 765,951,910.81/28,457.46
  6. Step 6: Final answer
    x = 26,915.68

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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.