Home / 27,905.46-38,509.50-15,158.58

Finding the Fourth Proportional to 27,905.46, 38,509.50 and 15,158.58

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Solution

The fourth proportional to 27,905.46, 38,509.50 and 15,158.58 is: 20,918.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,905.46 : 38,509.50 = 15,158.58 : x
  2. Step 2: Convert to fraction form
    27,905.46/38,509.50 = 15,158.58/x
  3. Step 3: Cross multiply
    27,905.46x = 38,509.50 × 15,158.58
  4. Step 4: Simplify right side
    27,905.46x = 583,749,336.51
  5. Step 5: Solve for x
    x = 583,749,336.51/27,905.46
  6. Step 6: Final answer
    x = 20,918.82

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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.