Home / 30,476.70-42,052.41-17,728.07

Finding the Fourth Proportional to 30,476.70, 42,052.41 and 17,728.07

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Solution

The fourth proportional to 30,476.70, 42,052.41 and 17,728.07 is: 24,461.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,476.70 : 42,052.41 = 17,728.07 : x
  2. Step 2: Convert to fraction form
    30,476.70/42,052.41 = 17,728.07/x
  3. Step 3: Cross multiply
    30,476.70x = 42,052.41 × 17,728.07
  4. Step 4: Simplify right side
    30,476.70x = 745,507,857.89
  5. Step 5: Solve for x
    x = 745,507,857.89/30,476.70
  6. Step 6: Final answer
    x = 24,461.57

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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.