Home / 35,478.42-53,217.84-10,518.69

Finding the Fourth Proportional to 35,478.42, 53,217.84 and 10,518.69

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Solution

The fourth proportional to 35,478.42, 53,217.84 and 10,518.69 is: 15,778.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,478.42 : 53,217.84 = 10,518.69 : x
  2. Step 2: Convert to fraction form
    35,478.42/53,217.84 = 10,518.69/x
  3. Step 3: Cross multiply
    35,478.42x = 53,217.84 × 10,518.69
  4. Step 4: Simplify right side
    35,478.42x = 559,781,961.43
  5. Step 5: Solve for x
    x = 559,781,961.43/35,478.42
  6. Step 6: Final answer
    x = 15,778.10

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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.