Home / 27,688.87-38,211.06-15,752.29

Finding the Fourth Proportional to 27,688.87, 38,211.06 and 15,752.29

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Solution

The fourth proportional to 27,688.87, 38,211.06 and 15,752.29 is: 21,738.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,688.87 : 38,211.06 = 15,752.29 : x
  2. Step 2: Convert to fraction form
    27,688.87/38,211.06 = 15,752.29/x
  3. Step 3: Cross multiply
    27,688.87x = 38,211.06 × 15,752.29
  4. Step 4: Simplify right side
    27,688.87x = 601,911,698.33
  5. Step 5: Solve for x
    x = 601,911,698.33/27,688.87
  6. Step 6: Final answer
    x = 21,738.40

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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.