Home / 34,905.60-52,358.40-12,719.70

Finding the Fourth Proportional to 34,905.60, 52,358.40 and 12,719.70

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Solution

The fourth proportional to 34,905.60, 52,358.40 and 12,719.70 is: 19,079.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,905.60 : 52,358.40 = 12,719.70 : x
  2. Step 2: Convert to fraction form
    34,905.60/52,358.40 = 12,719.70/x
  3. Step 3: Cross multiply
    34,905.60x = 52,358.40 × 12,719.70
  4. Step 4: Simplify right side
    34,905.60x = 665,983,140.48
  5. Step 5: Solve for x
    x = 665,983,140.48/34,905.60
  6. Step 6: Final answer
    x = 19,079.55

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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.