Home / 15,556.32-21,470.40-14,856.48

Finding the Fourth Proportional to 15,556.32, 21,470.40 and 14,856.48

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Solution

The fourth proportional to 15,556.32, 21,470.40 and 14,856.48 is: 20,504.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,556.32 : 21,470.40 = 14,856.48 : x
  2. Step 2: Convert to fraction form
    15,556.32/21,470.40 = 14,856.48/x
  3. Step 3: Cross multiply
    15,556.32x = 21,470.40 × 14,856.48
  4. Step 4: Simplify right side
    15,556.32x = 318,974,568.19
  5. Step 5: Solve for x
    x = 318,974,568.19/15,556.32
  6. Step 6: Final answer
    x = 20,504.50

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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.