Home / 20,374.84-30,602.58-12,386.08

Finding the Fourth Proportional to 20,374.84, 30,602.58 and 12,386.08

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Solution

The fourth proportional to 20,374.84, 30,602.58 and 12,386.08 is: 18,603.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,374.84 : 30,602.58 = 12,386.08 : x
  2. Step 2: Convert to fraction form
    20,374.84/30,602.58 = 12,386.08/x
  3. Step 3: Cross multiply
    20,374.84x = 30,602.58 × 12,386.08
  4. Step 4: Simplify right side
    20,374.84x = 379,046,004.09
  5. Step 5: Solve for x
    x = 379,046,004.09/20,374.84
  6. Step 6: Final answer
    x = 18,603.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.