Home / 30,727.35-42,407.75-17,301.20

Finding the Fourth Proportional to 30,727.35, 42,407.75 and 17,301.20

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Solution

The fourth proportional to 30,727.35, 42,407.75 and 17,301.20 is: 23,877.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,727.35 : 42,407.75 = 17,301.20 : x
  2. Step 2: Convert to fraction form
    30,727.35/42,407.75 = 17,301.20/x
  3. Step 3: Cross multiply
    30,727.35x = 42,407.75 × 17,301.20
  4. Step 4: Simplify right side
    30,727.35x = 733,704,795.51
  5. Step 5: Solve for x
    x = 733,704,795.51/30,727.35
  6. Step 6: Final answer
    x = 23,877.91

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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.