Home / 27,878.37-38,471.00-15,303.39

Finding the Fourth Proportional to 27,878.37, 38,471.00 and 15,303.39

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Solution

The fourth proportional to 27,878.37, 38,471.00 and 15,303.39 is: 21,118.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,878.37 : 38,471.00 = 15,303.39 : x
  2. Step 2: Convert to fraction form
    27,878.37/38,471.00 = 15,303.39/x
  3. Step 3: Cross multiply
    27,878.37x = 38,471.00 × 15,303.39
  4. Step 4: Simplify right side
    27,878.37x = 588,736,640.17
  5. Step 5: Solve for x
    x = 588,736,640.17/27,878.37
  6. Step 6: Final answer
    x = 21,118.04

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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.