Home / 44,429.76-66,555.36-21,078.72

Finding the Fourth Proportional to 44,429.76, 66,555.36 and 21,078.72

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Solution

The fourth proportional to 44,429.76, 66,555.36 and 21,078.72 is: 31,575.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,429.76 : 66,555.36 = 21,078.72 : x
  2. Step 2: Convert to fraction form
    44,429.76/66,555.36 = 21,078.72/x
  3. Step 3: Cross multiply
    44,429.76x = 66,555.36 × 21,078.72
  4. Step 4: Simplify right side
    44,429.76x = 1,402,901,797.94
  5. Step 5: Solve for x
    x = 1,402,901,797.94/44,429.76
  6. Step 6: Final answer
    x = 31,575.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.