Home / 27,785.41-38,343.55-15,038.30

Finding the Fourth Proportional to 27,785.41, 38,343.55 and 15,038.30

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Solution

The fourth proportional to 27,785.41, 38,343.55 and 15,038.30 is: 20,752.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,785.41 : 38,343.55 = 15,038.30 : x
  2. Step 2: Convert to fraction form
    27,785.41/38,343.55 = 15,038.30/x
  3. Step 3: Cross multiply
    27,785.41x = 38,343.55 × 15,038.30
  4. Step 4: Simplify right side
    27,785.41x = 576,621,807.97
  5. Step 5: Solve for x
    x = 576,621,807.97/27,785.41
  6. Step 6: Final answer
    x = 20,752.68

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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.