Home / 30,530.35-42,059.95-28,693.27

Finding the Fourth Proportional to 30,530.35, 42,059.95 and 28,693.27

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Solution

The fourth proportional to 30,530.35, 42,059.95 and 28,693.27 is: 39,529.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,530.35 : 42,059.95 = 28,693.27 : x
  2. Step 2: Convert to fraction form
    30,530.35/42,059.95 = 28,693.27/x
  3. Step 3: Cross multiply
    30,530.35x = 42,059.95 × 28,693.27
  4. Step 4: Simplify right side
    30,530.35x = 1,206,837,501.54
  5. Step 5: Solve for x
    x = 1,206,837,501.54/30,530.35
  6. Step 6: Final answer
    x = 39,529.11

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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.