Home / 38,620.61-53,284.05-21,622.35

Finding the Fourth Proportional to 38,620.61, 53,284.05 and 21,622.35

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Solution

The fourth proportional to 38,620.61, 53,284.05 and 21,622.35 is: 29,831.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,620.61 : 53,284.05 = 21,622.35 : x
  2. Step 2: Convert to fraction form
    38,620.61/53,284.05 = 21,622.35/x
  3. Step 3: Cross multiply
    38,620.61x = 53,284.05 × 21,622.35
  4. Step 4: Simplify right side
    38,620.61x = 1,152,126,378.52
  5. Step 5: Solve for x
    x = 1,152,126,378.52/38,620.61
  6. Step 6: Final answer
    x = 29,831.91

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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.