Home / 35,901.48-49,543.20-19,985.61

Finding the Fourth Proportional to 35,901.48, 49,543.20 and 19,985.61

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Solution

The fourth proportional to 35,901.48, 49,543.20 and 19,985.61 is: 27,579.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,901.48 : 49,543.20 = 19,985.61 : x
  2. Step 2: Convert to fraction form
    35,901.48/49,543.20 = 19,985.61/x
  3. Step 3: Cross multiply
    35,901.48x = 49,543.20 × 19,985.61
  4. Step 4: Simplify right side
    35,901.48x = 990,151,073.35
  5. Step 5: Solve for x
    x = 990,151,073.35/35,901.48
  6. Step 6: Final answer
    x = 27,579.67

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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.