Home / 21,770.06-30,051.87-14,706.05

Finding the Fourth Proportional to 21,770.06, 30,051.87 and 14,706.05

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Solution

The fourth proportional to 21,770.06, 30,051.87 and 14,706.05 is: 20,300.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,770.06 : 30,051.87 = 14,706.05 : x
  2. Step 2: Convert to fraction form
    21,770.06/30,051.87 = 14,706.05/x
  3. Step 3: Cross multiply
    21,770.06x = 30,051.87 × 14,706.05
  4. Step 4: Simplify right side
    21,770.06x = 441,944,307.81
  5. Step 5: Solve for x
    x = 441,944,307.81/21,770.06
  6. Step 6: Final answer
    x = 20,300.55

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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.