Home / 28,266.90-39,015.27-16,337.40

Finding the Fourth Proportional to 28,266.90, 39,015.27 and 16,337.40

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Solution

The fourth proportional to 28,266.90, 39,015.27 and 16,337.40 is: 22,549.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,266.90 : 39,015.27 = 16,337.40 : x
  2. Step 2: Convert to fraction form
    28,266.90/39,015.27 = 16,337.40/x
  3. Step 3: Cross multiply
    28,266.90x = 39,015.27 × 16,337.40
  4. Step 4: Simplify right side
    28,266.90x = 637,408,072.10
  5. Step 5: Solve for x
    x = 637,408,072.10/28,266.90
  6. Step 6: Final answer
    x = 22,549.63

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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.