Home / 16,972.80-25,459.20-15,705.60

Finding the Fourth Proportional to 16,972.80, 25,459.20 and 15,705.60

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Solution

The fourth proportional to 16,972.80, 25,459.20 and 15,705.60 is: 23,558.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,972.80 : 25,459.20 = 15,705.60 : x
  2. Step 2: Convert to fraction form
    16,972.80/25,459.20 = 15,705.60/x
  3. Step 3: Cross multiply
    16,972.80x = 25,459.20 × 15,705.60
  4. Step 4: Simplify right side
    16,972.80x = 399,852,011.52
  5. Step 5: Solve for x
    x = 399,852,011.52/16,972.80
  6. Step 6: Final answer
    x = 23,558.40

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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.