Home / 30,576.34-42,156.29-19,802.18

Finding the Fourth Proportional to 30,576.34, 42,156.29 and 19,802.18

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Solution

The fourth proportional to 30,576.34, 42,156.29 and 19,802.18 is: 27,301.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,576.34 : 42,156.29 = 19,802.18 : x
  2. Step 2: Convert to fraction form
    30,576.34/42,156.29 = 19,802.18/x
  3. Step 3: Cross multiply
    30,576.34x = 42,156.29 × 19,802.18
  4. Step 4: Simplify right side
    30,576.34x = 834,786,304.79
  5. Step 5: Solve for x
    x = 834,786,304.79/30,576.34
  6. Step 6: Final answer
    x = 27,301.71

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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.