Home / 15,867.23-21,852.48-15,522.77

Finding the Fourth Proportional to 15,867.23, 21,852.48 and 15,522.77

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Solution

The fourth proportional to 15,867.23, 21,852.48 and 15,522.77 is: 21,378.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,867.23 : 21,852.48 = 15,522.77 : x
  2. Step 2: Convert to fraction form
    15,867.23/21,852.48 = 15,522.77/x
  3. Step 3: Cross multiply
    15,867.23x = 21,852.48 × 15,522.77
  4. Step 4: Simplify right side
    15,867.23x = 339,211,133.81
  5. Step 5: Solve for x
    x = 339,211,133.81/15,867.23
  6. Step 6: Final answer
    x = 21,378.10

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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.