Home / 28,526.16-39,363.08-15,777.32

Finding the Fourth Proportional to 28,526.16, 39,363.08 and 15,777.32

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Solution

The fourth proportional to 28,526.16, 39,363.08 and 15,777.32 is: 21,771.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,526.16 : 39,363.08 = 15,777.32 : x
  2. Step 2: Convert to fraction form
    28,526.16/39,363.08 = 15,777.32/x
  3. Step 3: Cross multiply
    28,526.16x = 39,363.08 × 15,777.32
  4. Step 4: Simplify right side
    28,526.16x = 621,043,744.35
  5. Step 5: Solve for x
    x = 621,043,744.35/28,526.16
  6. Step 6: Final answer
    x = 21,771.02

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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.