Home / 20,953.42-28,928.46-14,577.64

Finding the Fourth Proportional to 20,953.42, 28,928.46 and 14,577.64

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Solution

The fourth proportional to 20,953.42, 28,928.46 and 14,577.64 is: 20,126.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,953.42 : 28,928.46 = 14,577.64 : x
  2. Step 2: Convert to fraction form
    20,953.42/28,928.46 = 14,577.64/x
  3. Step 3: Cross multiply
    20,953.42x = 28,928.46 × 14,577.64
  4. Step 4: Simplify right side
    20,953.42x = 421,708,675.63
  5. Step 5: Solve for x
    x = 421,708,675.63/20,953.42
  6. Step 6: Final answer
    x = 20,126.01

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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.