Home / 19,146.40-28,741.20-14,783.20

Finding the Fourth Proportional to 19,146.40, 28,741.20 and 14,783.20

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Solution

The fourth proportional to 19,146.40, 28,741.20 and 14,783.20 is: 22,191.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,146.40 : 28,741.20 = 14,783.20 : x
  2. Step 2: Convert to fraction form
    19,146.40/28,741.20 = 14,783.20/x
  3. Step 3: Cross multiply
    19,146.40x = 28,741.20 × 14,783.20
  4. Step 4: Simplify right side
    19,146.40x = 424,886,907.84
  5. Step 5: Solve for x
    x = 424,886,907.84/19,146.40
  6. Step 6: Final answer
    x = 22,191.48

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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.