Home / 35,512.47-49,005.59-20,394.50

Finding the Fourth Proportional to 35,512.47, 49,005.59 and 20,394.50

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Solution

The fourth proportional to 35,512.47, 49,005.59 and 20,394.50 is: 28,143.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,512.47 : 49,005.59 = 20,394.50 : x
  2. Step 2: Convert to fraction form
    35,512.47/49,005.59 = 20,394.50/x
  3. Step 3: Cross multiply
    35,512.47x = 49,005.59 × 20,394.50
  4. Step 4: Simplify right side
    35,512.47x = 999,444,158.25
  5. Step 5: Solve for x
    x = 999,444,158.25/35,512.47
  6. Step 6: Final answer
    x = 28,143.47

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1.5x scale

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.