Home / 35,506.68-53,246.58-12,128.76

Finding the Fourth Proportional to 35,506.68, 53,246.58 and 12,128.76

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Solution

The fourth proportional to 35,506.68, 53,246.58 and 12,128.76 is: 18,188.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,506.68 : 53,246.58 = 12,128.76 : x
  2. Step 2: Convert to fraction form
    35,506.68/53,246.58 = 12,128.76/x
  3. Step 3: Cross multiply
    35,506.68x = 53,246.58 × 12,128.76
  4. Step 4: Simplify right side
    35,506.68x = 645,814,989.64
  5. Step 5: Solve for x
    x = 645,814,989.64/35,506.68
  6. Step 6: Final answer
    x = 18,188.55

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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.