Home / 28,647.76-43,000.78-20,337.16

Finding the Fourth Proportional to 28,647.76, 43,000.78 and 20,337.16

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Solution

The fourth proportional to 28,647.76, 43,000.78 and 20,337.16 is: 30,526.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,647.76 : 43,000.78 = 20,337.16 : x
  2. Step 2: Convert to fraction form
    28,647.76/43,000.78 = 20,337.16/x
  3. Step 3: Cross multiply
    28,647.76x = 43,000.78 × 20,337.16
  4. Step 4: Simplify right side
    28,647.76x = 874,513,742.98
  5. Step 5: Solve for x
    x = 874,513,742.98/28,647.76
  6. Step 6: Final answer
    x = 30,526.43

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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.