Home / 30,703.05-42,369.75-17,274.32

Finding the Fourth Proportional to 30,703.05, 42,369.75 and 17,274.32

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Solution

The fourth proportional to 30,703.05, 42,369.75 and 17,274.32 is: 23,838.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,703.05 : 42,369.75 = 17,274.32 : x
  2. Step 2: Convert to fraction form
    30,703.05/42,369.75 = 17,274.32/x
  3. Step 3: Cross multiply
    30,703.05x = 42,369.75 × 17,274.32
  4. Step 4: Simplify right side
    30,703.05x = 731,908,619.82
  5. Step 5: Solve for x
    x = 731,908,619.82/30,703.05
  6. Step 6: Final answer
    x = 23,838.30

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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.