Home / 21,955.08-30,298.06-12,523.40

Finding the Fourth Proportional to 21,955.08, 30,298.06 and 12,523.40

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Solution

The fourth proportional to 21,955.08, 30,298.06 and 12,523.40 is: 17,282.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,955.08 : 30,298.06 = 12,523.40 : x
  2. Step 2: Convert to fraction form
    21,955.08/30,298.06 = 12,523.40/x
  3. Step 3: Cross multiply
    21,955.08x = 30,298.06 × 12,523.40
  4. Step 4: Simplify right side
    21,955.08x = 379,434,724.60
  5. Step 5: Solve for x
    x = 379,434,724.60/21,955.08
  6. Step 6: Final answer
    x = 17,282.32

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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.