Home / 35,985.47-49,664.75-21,838.55

Finding the Fourth Proportional to 35,985.47, 49,664.75 and 21,838.55

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Solution

The fourth proportional to 35,985.47, 49,664.75 and 21,838.55 is: 30,140.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,985.47 : 49,664.75 = 21,838.55 : x
  2. Step 2: Convert to fraction form
    35,985.47/49,664.75 = 21,838.55/x
  3. Step 3: Cross multiply
    35,985.47x = 49,664.75 × 21,838.55
  4. Step 4: Simplify right side
    35,985.47x = 1,084,605,768.60
  5. Step 5: Solve for x
    x = 1,084,605,768.60/35,985.47
  6. Step 6: Final answer
    x = 30,140.11

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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.