Home / 27,746.70-38,281.38-16,980.36

Finding the Fourth Proportional to 27,746.70, 38,281.38 and 16,980.36

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Solution

The fourth proportional to 27,746.70, 38,281.38 and 16,980.36 is: 23,427.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,746.70 : 38,281.38 = 16,980.36 : x
  2. Step 2: Convert to fraction form
    27,746.70/38,281.38 = 16,980.36/x
  3. Step 3: Cross multiply
    27,746.70x = 38,281.38 × 16,980.36
  4. Step 4: Simplify right side
    27,746.70x = 650,031,406.47
  5. Step 5: Solve for x
    x = 650,031,406.47/27,746.70
  6. Step 6: Final answer
    x = 23,427.34

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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.