Home / 38,972.31-58,435.09-18,942.35

Finding the Fourth Proportional to 38,972.31, 58,435.09 and 18,942.35

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Solution

The fourth proportional to 38,972.31, 58,435.09 and 18,942.35 is: 28,402.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,972.31 : 58,435.09 = 18,942.35 : x
  2. Step 2: Convert to fraction form
    38,972.31/58,435.09 = 18,942.35/x
  3. Step 3: Cross multiply
    38,972.31x = 58,435.09 × 18,942.35
  4. Step 4: Simplify right side
    38,972.31x = 1,106,897,927.06
  5. Step 5: Solve for x
    x = 1,106,897,927.06/38,972.31
  6. Step 6: Final answer
    x = 28,402.16

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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.