Home / 28,369.05-39,150.35-15,622.77

Finding the Fourth Proportional to 28,369.05, 39,150.35 and 15,622.77

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Solution

The fourth proportional to 28,369.05, 39,150.35 and 15,622.77 is: 21,560.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,369.05 : 39,150.35 = 15,622.77 : x
  2. Step 2: Convert to fraction form
    28,369.05/39,150.35 = 15,622.77/x
  3. Step 3: Cross multiply
    28,369.05x = 39,150.35 × 15,622.77
  4. Step 4: Simplify right side
    28,369.05x = 611,636,913.47
  5. Step 5: Solve for x
    x = 611,636,913.47/28,369.05
  6. Step 6: Final answer
    x = 21,560.01

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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.