Home / 70,267.38-105,416.46-20,349.51

Finding the Fourth Proportional to 70,267.38, 105,416.46 and 20,349.51

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Solution

The fourth proportional to 70,267.38, 105,416.46 and 20,349.51 is: 30,528.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,267.38 : 105,416.46 = 20,349.51 : x
  2. Step 2: Convert to fraction form
    70,267.38/105,416.46 = 20,349.51/x
  3. Step 3: Cross multiply
    70,267.38x = 105,416.46 × 20,349.51
  4. Step 4: Simplify right side
    70,267.38x = 2,145,173,306.93
  5. Step 5: Solve for x
    x = 2,145,173,306.93/70,267.38
  6. Step 6: Final answer
    x = 30,528.72

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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.