Home / 28,938.24-39,705.60-28,446.72

Finding the Fourth Proportional to 28,938.24, 39,705.60 and 28,446.72

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Solution

The fourth proportional to 28,938.24, 39,705.60 and 28,446.72 is: 39,031.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,938.24 : 39,705.60 = 28,446.72 : x
  2. Step 2: Convert to fraction form
    28,938.24/39,705.60 = 28,446.72/x
  3. Step 3: Cross multiply
    28,938.24x = 39,705.60 × 28,446.72
  4. Step 4: Simplify right side
    28,938.24x = 1,129,494,085.63
  5. Step 5: Solve for x
    x = 1,129,494,085.63/28,938.24
  6. Step 6: Final answer
    x = 39,031.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.