Home / 16,920.24-25,409.40-10,384.80

Finding the Fourth Proportional to 16,920.24, 25,409.40 and 10,384.80

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Solution

The fourth proportional to 16,920.24, 25,409.40 and 10,384.80 is: 15,595.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,920.24 : 25,409.40 = 10,384.80 : x
  2. Step 2: Convert to fraction form
    16,920.24/25,409.40 = 10,384.80/x
  3. Step 3: Cross multiply
    16,920.24x = 25,409.40 × 10,384.80
  4. Step 4: Simplify right side
    16,920.24x = 263,871,537.12
  5. Step 5: Solve for x
    x = 263,871,537.12/16,920.24
  6. Step 6: Final answer
    x = 15,595.02

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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.