Home / 28,526.67-39,363.77-15,777.83

Finding the Fourth Proportional to 28,526.67, 39,363.77 and 15,777.83

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Solution

The fourth proportional to 28,526.67, 39,363.77 and 15,777.83 is: 21,771.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,526.67 : 39,363.77 = 15,777.83 : x
  2. Step 2: Convert to fraction form
    28,526.67/39,363.77 = 15,777.83/x
  3. Step 3: Cross multiply
    28,526.67x = 39,363.77 × 15,777.83
  4. Step 4: Simplify right side
    28,526.67x = 621,074,871.22
  5. Step 5: Solve for x
    x = 621,074,871.22/28,526.67
  6. Step 6: Final answer
    x = 21,771.73

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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.