Home / 28,291.95-39,031.47-16,961.94

Finding the Fourth Proportional to 28,291.95, 39,031.47 and 16,961.94

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Solution

The fourth proportional to 28,291.95, 39,031.47 and 16,961.94 is: 23,400.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,291.95 : 39,031.47 = 16,961.94 : x
  2. Step 2: Convert to fraction form
    28,291.95/39,031.47 = 16,961.94/x
  3. Step 3: Cross multiply
    28,291.95x = 39,031.47 × 16,961.94
  4. Step 4: Simplify right side
    28,291.95x = 662,049,452.25
  5. Step 5: Solve for x
    x = 662,049,452.25/28,291.95
  6. Step 6: Final answer
    x = 23,400.63

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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.