Home / 26,320.80-39,484.20-8,792.40

Finding the Fourth Proportional to 26,320.80, 39,484.20 and 8,792.40

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Solution

The fourth proportional to 26,320.80, 39,484.20 and 8,792.40 is: 13,189.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,320.80 : 39,484.20 = 8,792.40 : x
  2. Step 2: Convert to fraction form
    26,320.80/39,484.20 = 8,792.40/x
  3. Step 3: Cross multiply
    26,320.80x = 39,484.20 × 8,792.40
  4. Step 4: Simplify right side
    26,320.80x = 347,160,880.08
  5. Step 5: Solve for x
    x = 347,160,880.08/26,320.80
  6. Step 6: Final answer
    x = 13,189.60

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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.