Home / 30,664.47-42,320.48-17,053.87

Finding the Fourth Proportional to 30,664.47, 42,320.48 and 17,053.87

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Solution

The fourth proportional to 30,664.47, 42,320.48 and 17,053.87 is: 23,536.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,664.47 : 42,320.48 = 17,053.87 : x
  2. Step 2: Convert to fraction form
    30,664.47/42,320.48 = 17,053.87/x
  3. Step 3: Cross multiply
    30,664.47x = 42,320.48 × 17,053.87
  4. Step 4: Simplify right side
    30,664.47x = 721,727,878.99
  5. Step 5: Solve for x
    x = 721,727,878.99/30,664.47
  6. Step 6: Final answer
    x = 23,536.29

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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.