Home / 35,746.87-49,334.95-20,643.21

Finding the Fourth Proportional to 35,746.87, 49,334.95 and 20,643.21

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Solution

The fourth proportional to 35,746.87, 49,334.95 and 20,643.21 is: 28,490.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,746.87 : 49,334.95 = 20,643.21 : x
  2. Step 2: Convert to fraction form
    35,746.87/49,334.95 = 20,643.21/x
  3. Step 3: Cross multiply
    35,746.87x = 49,334.95 × 20,643.21
  4. Step 4: Simplify right side
    35,746.87x = 1,018,431,629.97
  5. Step 5: Solve for x
    x = 1,018,431,629.97/35,746.87
  6. Step 6: Final answer
    x = 28,490.09

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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.