Home / 20,457.16-28,230.74-11,625.16

Finding the Fourth Proportional to 20,457.16, 28,230.74 and 11,625.16

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Solution

The fourth proportional to 20,457.16, 28,230.74 and 11,625.16 is: 16,042.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,457.16 : 28,230.74 = 11,625.16 : x
  2. Step 2: Convert to fraction form
    20,457.16/28,230.74 = 11,625.16/x
  3. Step 3: Cross multiply
    20,457.16x = 28,230.74 × 11,625.16
  4. Step 4: Simplify right side
    20,457.16x = 328,186,869.42
  5. Step 5: Solve for x
    x = 328,186,869.42/20,457.16
  6. Step 6: Final answer
    x = 16,042.64

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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.