Home / 28,561.55-39,405.40-16,622.36

Finding the Fourth Proportional to 28,561.55, 39,405.40 and 16,622.36

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Solution

The fourth proportional to 28,561.55, 39,405.40 and 16,622.36 is: 22,933.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,561.55 : 39,405.40 = 16,622.36 : x
  2. Step 2: Convert to fraction form
    28,561.55/39,405.40 = 16,622.36/x
  3. Step 3: Cross multiply
    28,561.55x = 39,405.40 × 16,622.36
  4. Step 4: Simplify right side
    28,561.55x = 655,010,547.72
  5. Step 5: Solve for x
    x = 655,010,547.72/28,561.55
  6. Step 6: Final answer
    x = 22,933.30

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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.