Home / 28,507.12-39,298.44-19,982.68

Finding the Fourth Proportional to 28,507.12, 39,298.44 and 19,982.68

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Solution

The fourth proportional to 28,507.12, 39,298.44 and 19,982.68 is: 27,547.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,507.12 : 39,298.44 = 19,982.68 : x
  2. Step 2: Convert to fraction form
    28,507.12/39,298.44 = 19,982.68/x
  3. Step 3: Cross multiply
    28,507.12x = 39,298.44 × 19,982.68
  4. Step 4: Simplify right side
    28,507.12x = 785,288,151.02
  5. Step 5: Solve for x
    x = 785,288,151.02/28,507.12
  6. Step 6: Final answer
    x = 27,547.09

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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.