Home / 28,152,880-38,850,974.40-15,275,824

Finding the Fourth Proportional to 28,152,880, 38,850,974.40 and 15,275,824

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Solution

The fourth proportional to 28,152,880, 38,850,974.40 and 15,275,824 is: 21,080,637.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,152,880 : 38,850,974.40 = 15,275,824 : x
  2. Step 2: Convert to fraction form
    28,152,880/38,850,974.40 = 15,275,824/x
  3. Step 3: Cross multiply
    28,152,880x = 38,850,974.40 × 15,275,824
  4. Step 4: Simplify right side
    28,152,880x = 593,480,647,162,905.62
  5. Step 5: Solve for x
    x = 593,480,647,162,905.62/28,152,880
  6. Step 6: Final answer
    x = 21,080,637.12

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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.