Home / 53,275.17-79,912.80-13,828.98

Finding the Fourth Proportional to 53,275.17, 79,912.80 and 13,828.98

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Solution

The fourth proportional to 53,275.17, 79,912.80 and 13,828.98 is: 20,743.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,275.17 : 79,912.80 = 13,828.98 : x
  2. Step 2: Convert to fraction form
    53,275.17/79,912.80 = 13,828.98/x
  3. Step 3: Cross multiply
    53,275.17x = 79,912.80 × 13,828.98
  4. Step 4: Simplify right side
    53,275.17x = 1,105,112,512.94
  5. Step 5: Solve for x
    x = 1,105,112,512.94/53,275.17
  6. Step 6: Final answer
    x = 20,743.48

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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.