Home / 28,526.54-39,363.59-15,777.69

Finding the Fourth Proportional to 28,526.54, 39,363.59 and 15,777.69

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Solution

The fourth proportional to 28,526.54, 39,363.59 and 15,777.69 is: 21,771.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,526.54 : 39,363.59 = 15,777.69 : x
  2. Step 2: Convert to fraction form
    28,526.54/39,363.59 = 15,777.69/x
  3. Step 3: Cross multiply
    28,526.54x = 39,363.59 × 15,777.69
  4. Step 4: Simplify right side
    28,526.54x = 621,066,707.36
  5. Step 5: Solve for x
    x = 621,066,707.36/28,526.54
  6. Step 6: Final answer
    x = 21,771.54

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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.