Home / 19,988.42-27,608.55-14,975.06

Finding the Fourth Proportional to 19,988.42, 27,608.55 and 14,975.06

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Solution

The fourth proportional to 19,988.42, 27,608.55 and 14,975.06 is: 20,683.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,988.42 : 27,608.55 = 14,975.06 : x
  2. Step 2: Convert to fraction form
    19,988.42/27,608.55 = 14,975.06/x
  3. Step 3: Cross multiply
    19,988.42x = 27,608.55 × 14,975.06
  4. Step 4: Simplify right side
    19,988.42x = 413,439,692.76
  5. Step 5: Solve for x
    x = 413,439,692.76/19,988.42
  6. Step 6: Final answer
    x = 20,683.96

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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.