Home / 25,309.71-34,927.67-13,979.49

Finding the Fourth Proportional to 25,309.71, 34,927.67 and 13,979.49

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Solution

The fourth proportional to 25,309.71, 34,927.67 and 13,979.49 is: 19,291.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,309.71 : 34,927.67 = 13,979.49 : x
  2. Step 2: Convert to fraction form
    25,309.71/34,927.67 = 13,979.49/x
  3. Step 3: Cross multiply
    25,309.71x = 34,927.67 × 13,979.49
  4. Step 4: Simplify right side
    25,309.71x = 488,271,013.49
  5. Step 5: Solve for x
    x = 488,271,013.49/25,309.71
  6. Step 6: Final answer
    x = 19,291.85

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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.