Home / 16,257.60-24,386.40-10,420.80

Finding the Fourth Proportional to 16,257.60, 24,386.40 and 10,420.80

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Solution

The fourth proportional to 16,257.60, 24,386.40 and 10,420.80 is: 15,631.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,257.60 : 24,386.40 = 10,420.80 : x
  2. Step 2: Convert to fraction form
    16,257.60/24,386.40 = 10,420.80/x
  3. Step 3: Cross multiply
    16,257.60x = 24,386.40 × 10,420.80
  4. Step 4: Simplify right side
    16,257.60x = 254,125,797.12
  5. Step 5: Solve for x
    x = 254,125,797.12/16,257.60
  6. Step 6: Final answer
    x = 15,631.20

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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.