Home / 30,386.72-41,934.67-17,638.94

Finding the Fourth Proportional to 30,386.72, 41,934.67 and 17,638.94

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Solution

The fourth proportional to 30,386.72, 41,934.67 and 17,638.94 is: 24,342.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,386.72 : 41,934.67 = 17,638.94 : x
  2. Step 2: Convert to fraction form
    30,386.72/41,934.67 = 17,638.94/x
  3. Step 3: Cross multiply
    30,386.72x = 41,934.67 × 17,638.94
  4. Step 4: Simplify right side
    30,386.72x = 739,683,128.05
  5. Step 5: Solve for x
    x = 739,683,128.05/30,386.72
  6. Step 6: Final answer
    x = 24,342.32

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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.