Home / 28,421.70-39,221.87-16,492.02

Finding the Fourth Proportional to 28,421.70, 39,221.87 and 16,492.02

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Solution

The fourth proportional to 28,421.70, 39,221.87 and 16,492.02 is: 22,758.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,421.70 : 39,221.87 = 16,492.02 : x
  2. Step 2: Convert to fraction form
    28,421.70/39,221.87 = 16,492.02/x
  3. Step 3: Cross multiply
    28,421.70x = 39,221.87 × 16,492.02
  4. Step 4: Simplify right side
    28,421.70x = 646,847,782.02
  5. Step 5: Solve for x
    x = 646,847,782.02/28,421.70
  6. Step 6: Final answer
    x = 22,758.94

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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.