Home / 28,369.52-39,151.32-16,430.72

Finding the Fourth Proportional to 28,369.52, 39,151.32 and 16,430.72

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Solution

The fourth proportional to 28,369.52, 39,151.32 and 16,430.72 is: 22,675.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,369.52 : 39,151.32 = 16,430.72 : x
  2. Step 2: Convert to fraction form
    28,369.52/39,151.32 = 16,430.72/x
  3. Step 3: Cross multiply
    28,369.52x = 39,151.32 × 16,430.72
  4. Step 4: Simplify right side
    28,369.52x = 643,284,376.55
  5. Step 5: Solve for x
    x = 643,284,376.55/28,369.52
  6. Step 6: Final answer
    x = 22,675.19

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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.