Home / 27,315.53-37,695.00-15,378.90

Finding the Fourth Proportional to 27,315.53, 37,695.00 and 15,378.90

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Solution

The fourth proportional to 27,315.53, 37,695.00 and 15,378.90 is: 21,222.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,315.53 : 37,695.00 = 15,378.90 : x
  2. Step 2: Convert to fraction form
    27,315.53/37,695.00 = 15,378.90/x
  3. Step 3: Cross multiply
    27,315.53x = 37,695.00 × 15,378.90
  4. Step 4: Simplify right side
    27,315.53x = 579,707,551.81
  5. Step 5: Solve for x
    x = 579,707,551.81/27,315.53
  6. Step 6: Final answer
    x = 21,222.64

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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.