Home / 27,378.10-37,783.06-15,441.18

Finding the Fourth Proportional to 27,378.10, 37,783.06 and 15,441.18

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Solution

The fourth proportional to 27,378.10, 37,783.06 and 15,441.18 is: 21,309.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,378.10 : 37,783.06 = 15,441.18 : x
  2. Step 2: Convert to fraction form
    27,378.10/37,783.06 = 15,441.18/x
  3. Step 3: Cross multiply
    27,378.10x = 37,783.06 × 15,441.18
  4. Step 4: Simplify right side
    27,378.10x = 583,415,030.41
  5. Step 5: Solve for x
    x = 583,415,030.41/27,378.10
  6. Step 6: Final answer
    x = 21,309.55

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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.