Home / 30,872.26-42,588.06-19,522.63

Finding the Fourth Proportional to 30,872.26, 42,588.06 and 19,522.63

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Solution

The fourth proportional to 30,872.26, 42,588.06 and 19,522.63 is: 26,931.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,872.26 : 42,588.06 = 19,522.63 : x
  2. Step 2: Convert to fraction form
    30,872.26/42,588.06 = 19,522.63/x
  3. Step 3: Cross multiply
    30,872.26x = 42,588.06 × 19,522.63
  4. Step 4: Simplify right side
    30,872.26x = 831,430,937.80
  5. Step 5: Solve for x
    x = 831,430,937.80/30,872.26
  6. Step 6: Final answer
    x = 26,931.33

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Half scale
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Double scale
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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.