Home / 28,870.08-39,851.22-16,943.40

Finding the Fourth Proportional to 28,870.08, 39,851.22 and 16,943.40

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Solution

The fourth proportional to 28,870.08, 39,851.22 and 16,943.40 is: 23,388.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870.08 : 39,851.22 = 16,943.40 : x
  2. Step 2: Convert to fraction form
    28,870.08/39,851.22 = 16,943.40/x
  3. Step 3: Cross multiply
    28,870.08x = 39,851.22 × 16,943.40
  4. Step 4: Simplify right side
    28,870.08x = 675,215,160.95
  5. Step 5: Solve for x
    x = 675,215,160.95/28,870.08
  6. Step 6: Final answer
    x = 23,388.06

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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.