Home / 34,886.28-48,142.72-18,970.39

Finding the Fourth Proportional to 34,886.28, 48,142.72 and 18,970.39

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Solution

The fourth proportional to 34,886.28, 48,142.72 and 18,970.39 is: 26,178.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,886.28 : 48,142.72 = 18,970.39 : x
  2. Step 2: Convert to fraction form
    34,886.28/48,142.72 = 18,970.39/x
  3. Step 3: Cross multiply
    34,886.28x = 48,142.72 × 18,970.39
  4. Step 4: Simplify right side
    34,886.28x = 913,286,174.06
  5. Step 5: Solve for x
    x = 913,286,174.06/34,886.28
  6. Step 6: Final answer
    x = 26,178.95

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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.