Home / 21,848.60-30,151.62-12,895.24

Finding the Fourth Proportional to 21,848.60, 30,151.62 and 12,895.24

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Solution

The fourth proportional to 21,848.60, 30,151.62 and 12,895.24 is: 17,795.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,848.60 : 30,151.62 = 12,895.24 : x
  2. Step 2: Convert to fraction form
    21,848.60/30,151.62 = 12,895.24/x
  3. Step 3: Cross multiply
    21,848.60x = 30,151.62 × 12,895.24
  4. Step 4: Simplify right side
    21,848.60x = 388,812,376.29
  5. Step 5: Solve for x
    x = 388,812,376.29/21,848.60
  6. Step 6: Final answer
    x = 17,795.76

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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.