Home / 28,957.26-43,457.73-21,186.12

Finding the Fourth Proportional to 28,957.26, 43,457.73 and 21,186.12

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Solution

The fourth proportional to 28,957.26, 43,457.73 and 21,186.12 is: 31,795.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,957.26 : 43,457.73 = 21,186.12 : x
  2. Step 2: Convert to fraction form
    28,957.26/43,457.73 = 21,186.12/x
  3. Step 3: Cross multiply
    28,957.26x = 43,457.73 × 21,186.12
  4. Step 4: Simplify right side
    28,957.26x = 920,700,682.71
  5. Step 5: Solve for x
    x = 920,700,682.71/28,957.26
  6. Step 6: Final answer
    x = 31,795.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.