Home / 28,048.25-38,707.31-15,301.64

Finding the Fourth Proportional to 28,048.25, 38,707.31 and 15,301.64

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Solution

The fourth proportional to 28,048.25, 38,707.31 and 15,301.64 is: 21,116.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,048.25 : 38,707.31 = 15,301.64 : x
  2. Step 2: Convert to fraction form
    28,048.25/38,707.31 = 15,301.64/x
  3. Step 3: Cross multiply
    28,048.25x = 38,707.31 × 15,301.64
  4. Step 4: Simplify right side
    28,048.25x = 592,285,322.99
  5. Step 5: Solve for x
    x = 592,285,322.99/28,048.25
  6. Step 6: Final answer
    x = 21,116.66

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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.