Home / 29,485.20-40,689.60-16,910.40

Finding the Fourth Proportional to 29,485.20, 40,689.60 and 16,910.40

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Solution

The fourth proportional to 29,485.20, 40,689.60 and 16,910.40 is: 23,336.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,485.20 : 40,689.60 = 16,910.40 : x
  2. Step 2: Convert to fraction form
    29,485.20/40,689.60 = 16,910.40/x
  3. Step 3: Cross multiply
    29,485.20x = 40,689.60 × 16,910.40
  4. Step 4: Simplify right side
    29,485.20x = 688,077,411.84
  5. Step 5: Solve for x
    x = 688,077,411.84/29,485.20
  6. Step 6: Final answer
    x = 23,336.37

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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.