Home / 19,901.67-27,457.45-12,345.27

Finding the Fourth Proportional to 19,901.67, 27,457.45 and 12,345.27

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Solution

The fourth proportional to 19,901.67, 27,457.45 and 12,345.27 is: 17,032.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,901.67 : 27,457.45 = 12,345.27 : x
  2. Step 2: Convert to fraction form
    19,901.67/27,457.45 = 12,345.27/x
  3. Step 3: Cross multiply
    19,901.67x = 27,457.45 × 12,345.27
  4. Step 4: Simplify right side
    19,901.67x = 338,969,633.76
  5. Step 5: Solve for x
    x = 338,969,633.76/19,901.67
  6. Step 6: Final answer
    x = 17,032.22

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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.