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Finding the Fourth Proportional to 19,517, 29,111.02 and 16,360.40

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Solution

The fourth proportional to 19,517, 29,111.02 and 16,360.40 is: 24,402.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,517 : 29,111.02 = 16,360.40 : x
  2. Step 2: Convert to fraction form
    19,517/29,111.02 = 16,360.40/x
  3. Step 3: Cross multiply
    19,517x = 29,111.02 × 16,360.40
  4. Step 4: Simplify right side
    19,517x = 476,267,931.61
  5. Step 5: Solve for x
    x = 476,267,931.61/19,517
  6. Step 6: Final answer
    x = 24,402.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.