Home / 20,071.17-30,117.48-15,106.68

Finding the Fourth Proportional to 20,071.17, 30,117.48 and 15,106.68

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Solution

The fourth proportional to 20,071.17, 30,117.48 and 15,106.68 is: 22,668.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,071.17 : 30,117.48 = 15,106.68 : x
  2. Step 2: Convert to fraction form
    20,071.17/30,117.48 = 15,106.68/x
  3. Step 3: Cross multiply
    20,071.17x = 30,117.48 × 15,106.68
  4. Step 4: Simplify right side
    20,071.17x = 454,975,132.77
  5. Step 5: Solve for x
    x = 454,975,132.77/20,071.17
  6. Step 6: Final answer
    x = 22,668.09

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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.