Home / 16,740.80-25,111.20-16,638.40

Finding the Fourth Proportional to 16,740.80, 25,111.20 and 16,638.40

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Solution

The fourth proportional to 16,740.80, 25,111.20 and 16,638.40 is: 24,957.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,740.80 : 25,111.20 = 16,638.40 : x
  2. Step 2: Convert to fraction form
    16,740.80/25,111.20 = 16,638.40/x
  3. Step 3: Cross multiply
    16,740.80x = 25,111.20 × 16,638.40
  4. Step 4: Simplify right side
    16,740.80x = 417,810,190.08
  5. Step 5: Solve for x
    x = 417,810,190.08/16,740.80
  6. Step 6: Final answer
    x = 24,957.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.