Home / 27,521.76-37,980.54-15,585.06

Finding the Fourth Proportional to 27,521.76, 37,980.54 and 15,585.06

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Solution

The fourth proportional to 27,521.76, 37,980.54 and 15,585.06 is: 21,507.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,521.76 : 37,980.54 = 15,585.06 : x
  2. Step 2: Convert to fraction form
    27,521.76/37,980.54 = 15,585.06/x
  3. Step 3: Cross multiply
    27,521.76x = 37,980.54 × 15,585.06
  4. Step 4: Simplify right side
    27,521.76x = 591,928,994.73
  5. Step 5: Solve for x
    x = 591,928,994.73/27,521.76
  6. Step 6: Final answer
    x = 21,507.67

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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.