Home / 16,455.84-22,708.98-15,117

Finding the Fourth Proportional to 16,455.84, 22,708.98 and 15,117

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Solution

The fourth proportional to 16,455.84, 22,708.98 and 15,117 is: 20,861.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,455.84 : 22,708.98 = 15,117 : x
  2. Step 2: Convert to fraction form
    16,455.84/22,708.98 = 15,117/x
  3. Step 3: Cross multiply
    16,455.84x = 22,708.98 × 15,117
  4. Step 4: Simplify right side
    16,455.84x = 343,291,650.66
  5. Step 5: Solve for x
    x = 343,291,650.66/16,455.84
  6. Step 6: Final answer
    x = 20,861.39

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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.