Home / 42,290.63-63,436.97-14,211.09

Finding the Fourth Proportional to 42,290.63, 63,436.97 and 14,211.09

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Solution

The fourth proportional to 42,290.63, 63,436.97 and 14,211.09 is: 21,316.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,290.63 : 63,436.97 = 14,211.09 : x
  2. Step 2: Convert to fraction form
    42,290.63/63,436.97 = 14,211.09/x
  3. Step 3: Cross multiply
    42,290.63x = 63,436.97 × 14,211.09
  4. Step 4: Simplify right side
    42,290.63x = 901,508,101.76
  5. Step 5: Solve for x
    x = 901,508,101.76/42,290.63
  6. Step 6: Final answer
    x = 21,316.97

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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.