Home / 20,946.42-28,918.80-14,570.64

Finding the Fourth Proportional to 20,946.42, 28,918.80 and 14,570.64

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Solution

The fourth proportional to 20,946.42, 28,918.80 and 14,570.64 is: 20,116.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,946.42 : 28,918.80 = 14,570.64 : x
  2. Step 2: Convert to fraction form
    20,946.42/28,918.80 = 14,570.64/x
  3. Step 3: Cross multiply
    20,946.42x = 28,918.80 × 14,570.64
  4. Step 4: Simplify right side
    20,946.42x = 421,365,424.03
  5. Step 5: Solve for x
    x = 421,365,424.03/20,946.42
  6. Step 6: Final answer
    x = 20,116.35

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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.