Home / 15,864.40-23,854.20-15,518.80

Finding the Fourth Proportional to 15,864.40, 23,854.20 and 15,518.80

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Solution

The fourth proportional to 15,864.40, 23,854.20 and 15,518.80 is: 23,334.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,864.40 : 23,854.20 = 15,518.80 : x
  2. Step 2: Convert to fraction form
    15,864.40/23,854.20 = 15,518.80/x
  3. Step 3: Cross multiply
    15,864.40x = 23,854.20 × 15,518.80
  4. Step 4: Simplify right side
    15,864.40x = 370,188,558.96
  5. Step 5: Solve for x
    x = 370,188,558.96/15,864.40
  6. Step 6: Final answer
    x = 23,334.55

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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.