Home / 28,349.88-39,105.63-17,730.78

Finding the Fourth Proportional to 28,349.88, 39,105.63 and 17,730.78

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Solution

The fourth proportional to 28,349.88, 39,105.63 and 17,730.78 is: 24,457.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,349.88 : 39,105.63 = 17,730.78 : x
  2. Step 2: Convert to fraction form
    28,349.88/39,105.63 = 17,730.78/x
  3. Step 3: Cross multiply
    28,349.88x = 39,105.63 × 17,730.78
  4. Step 4: Simplify right side
    28,349.88x = 693,373,322.29
  5. Step 5: Solve for x
    x = 693,373,322.29/28,349.88
  6. Step 6: Final answer
    x = 24,457.72

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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.