Home / 28,403.50-39,195.20-16,301.42

Finding the Fourth Proportional to 28,403.50, 39,195.20 and 16,301.42

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Solution

The fourth proportional to 28,403.50, 39,195.20 and 16,301.42 is: 22,495.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,403.50 : 39,195.20 = 16,301.42 : x
  2. Step 2: Convert to fraction form
    28,403.50/39,195.20 = 16,301.42/x
  3. Step 3: Cross multiply
    28,403.50x = 39,195.20 × 16,301.42
  4. Step 4: Simplify right side
    28,403.50x = 638,937,417.18
  5. Step 5: Solve for x
    x = 638,937,417.18/28,403.50
  6. Step 6: Final answer
    x = 22,495.02

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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.