Home / 30,436.68-42,001.81-17,008.04

Finding the Fourth Proportional to 30,436.68, 42,001.81 and 17,008.04

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Solution

The fourth proportional to 30,436.68, 42,001.81 and 17,008.04 is: 23,470.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,436.68 : 42,001.81 = 17,008.04 : x
  2. Step 2: Convert to fraction form
    30,436.68/42,001.81 = 17,008.04/x
  3. Step 3: Cross multiply
    30,436.68x = 42,001.81 × 17,008.04
  4. Step 4: Simplify right side
    30,436.68x = 714,368,379.51
  5. Step 5: Solve for x
    x = 714,368,379.51/30,436.68
  6. Step 6: Final answer
    x = 23,470.64

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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.