Home / 27,809.63-38,378.24-15,235.19

Finding the Fourth Proportional to 27,809.63, 38,378.24 and 15,235.19

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Solution

The fourth proportional to 27,809.63, 38,378.24 and 15,235.19 is: 21,025.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,809.63 : 38,378.24 = 15,235.19 : x
  2. Step 2: Convert to fraction form
    27,809.63/38,378.24 = 15,235.19/x
  3. Step 3: Cross multiply
    27,809.63x = 38,378.24 × 15,235.19
  4. Step 4: Simplify right side
    27,809.63x = 584,699,510.20
  5. Step 5: Solve for x
    x = 584,699,510.20/27,809.63
  6. Step 6: Final answer
    x = 21,025.08

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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.