Home / 35,389.64-48,837.87-20,283.20

Finding the Fourth Proportional to 35,389.64, 48,837.87 and 20,283.20

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Solution

The fourth proportional to 35,389.64, 48,837.87 and 20,283.20 is: 27,990.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,389.64 : 48,837.87 = 20,283.20 : x
  2. Step 2: Convert to fraction form
    35,389.64/48,837.87 = 20,283.20/x
  3. Step 3: Cross multiply
    35,389.64x = 48,837.87 × 20,283.20
  4. Step 4: Simplify right side
    35,389.64x = 990,588,040.59
  5. Step 5: Solve for x
    x = 990,588,040.59/35,389.64
  6. Step 6: Final answer
    x = 27,990.91

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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.