Home / 30,778.02-42,489.09-23,957.01

Finding the Fourth Proportional to 30,778.02, 42,489.09 and 23,957.01

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Solution

The fourth proportional to 30,778.02, 42,489.09 and 23,957.01 is: 33,072.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,778.02 : 42,489.09 = 23,957.01 : x
  2. Step 2: Convert to fraction form
    30,778.02/42,489.09 = 23,957.01/x
  3. Step 3: Cross multiply
    30,778.02x = 42,489.09 × 23,957.01
  4. Step 4: Simplify right side
    30,778.02x = 1,017,911,554.02
  5. Step 5: Solve for x
    x = 1,017,911,554.02/30,778.02
  6. Step 6: Final answer
    x = 33,072.68

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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.