Home / 28,031.39-38,643.12-22,052.67

Finding the Fourth Proportional to 28,031.39, 38,643.12 and 22,052.67

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Solution

The fourth proportional to 28,031.39, 38,643.12 and 22,052.67 is: 30,401.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,031.39 : 38,643.12 = 22,052.67 : x
  2. Step 2: Convert to fraction form
    28,031.39/38,643.12 = 22,052.67/x
  3. Step 3: Cross multiply
    28,031.39x = 38,643.12 × 22,052.67
  4. Step 4: Simplify right side
    28,031.39x = 852,183,973.13
  5. Step 5: Solve for x
    x = 852,183,973.13/28,031.39
  6. Step 6: Final answer
    x = 30,401.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.