Home / 35,294.40-48,720.15-21,144.51

Finding the Fourth Proportional to 35,294.40, 48,720.15 and 21,144.51

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Solution

The fourth proportional to 35,294.40, 48,720.15 and 21,144.51 is: 29,187.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,294.40 : 48,720.15 = 21,144.51 : x
  2. Step 2: Convert to fraction form
    35,294.40/48,720.15 = 21,144.51/x
  3. Step 3: Cross multiply
    35,294.40x = 48,720.15 × 21,144.51
  4. Step 4: Simplify right side
    35,294.40x = 1,030,163,698.88
  5. Step 5: Solve for x
    x = 1,030,163,698.88/35,294.40
  6. Step 6: Final answer
    x = 29,187.74

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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.