Home / 28,528.52-39,369.36-15,953.30

Finding the Fourth Proportional to 28,528.52, 39,369.36 and 15,953.30

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Solution

The fourth proportional to 28,528.52, 39,369.36 and 15,953.30 is: 22,015.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,528.52 : 39,369.36 = 15,953.30 : x
  2. Step 2: Convert to fraction form
    28,528.52/39,369.36 = 15,953.30/x
  3. Step 3: Cross multiply
    28,528.52x = 39,369.36 × 15,953.30
  4. Step 4: Simplify right side
    28,528.52x = 628,071,210.89
  5. Step 5: Solve for x
    x = 628,071,210.89/28,528.52
  6. Step 6: Final answer
    x = 22,015.56

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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.