Home / 21,697.79-29,960.67-16,038.92

Finding the Fourth Proportional to 21,697.79, 29,960.67 and 16,038.92

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Solution

The fourth proportional to 21,697.79, 29,960.67 and 16,038.92 is: 22,146.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,697.79 : 29,960.67 = 16,038.92 : x
  2. Step 2: Convert to fraction form
    21,697.79/29,960.67 = 16,038.92/x
  3. Step 3: Cross multiply
    21,697.79x = 29,960.67 × 16,038.92
  4. Step 4: Simplify right side
    21,697.79x = 480,536,639.47
  5. Step 5: Solve for x
    x = 480,536,639.47/21,697.79
  6. Step 6: Final answer
    x = 22,146.81

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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.