Home / 28,935.54-43,402.98-21,958.40

Finding the Fourth Proportional to 28,935.54, 43,402.98 and 21,958.40

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Solution

The fourth proportional to 28,935.54, 43,402.98 and 21,958.40 is: 32,937.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,935.54 : 43,402.98 = 21,958.40 : x
  2. Step 2: Convert to fraction form
    28,935.54/43,402.98 = 21,958.40/x
  3. Step 3: Cross multiply
    28,935.54x = 43,402.98 × 21,958.40
  4. Step 4: Simplify right side
    28,935.54x = 953,059,996.03
  5. Step 5: Solve for x
    x = 953,059,996.03/28,935.54
  6. Step 6: Final answer
    x = 32,937.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.