Home / 51,638.67-71,258.47-28,975.55

Finding the Fourth Proportional to 51,638.67, 71,258.47 and 28,975.55

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Solution

The fourth proportional to 51,638.67, 71,258.47 and 28,975.55 is: 39,984.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,638.67 : 71,258.47 = 28,975.55 : x
  2. Step 2: Convert to fraction form
    51,638.67/71,258.47 = 28,975.55/x
  3. Step 3: Cross multiply
    51,638.67x = 71,258.47 × 28,975.55
  4. Step 4: Simplify right side
    51,638.67x = 2,064,752,931.68
  5. Step 5: Solve for x
    x = 2,064,752,931.68/51,638.67
  6. Step 6: Final answer
    x = 39,984.63

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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.