Home / 21,354,038.60-31,956,408.30-19,562,448.20

Finding the Fourth Proportional to 21,354,038.60, 31,956,408.30 and 19,562,448.20

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Solution

The fourth proportional to 21,354,038.60, 31,956,408.30 and 19,562,448.20 is: 29,275,285.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,354,038.60 : 31,956,408.30 = 19,562,448.20 : x
  2. Step 2: Convert to fraction form
    21,354,038.60/31,956,408.30 = 19,562,448.20/x
  3. Step 3: Cross multiply
    21,354,038.60x = 31,956,408.30 × 19,562,448.20
  4. Step 4: Simplify right side
    21,354,038.60x = 625,145,582,026,800
  5. Step 5: Solve for x
    x = 625,145,582,026,800/21,354,038.60
  6. Step 6: Final answer
    x = 29,275,285.75

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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.