Home / 30,977.02-42,747.78-16,829.56

Finding the Fourth Proportional to 30,977.02, 42,747.78 and 16,829.56

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Solution

The fourth proportional to 30,977.02, 42,747.78 and 16,829.56 is: 23,224.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,977.02 : 42,747.78 = 16,829.56 : x
  2. Step 2: Convert to fraction form
    30,977.02/42,747.78 = 16,829.56/x
  3. Step 3: Cross multiply
    30,977.02x = 42,747.78 × 16,829.56
  4. Step 4: Simplify right side
    30,977.02x = 719,426,328.38
  5. Step 5: Solve for x
    x = 719,426,328.38/30,977.02
  6. Step 6: Final answer
    x = 23,224.52

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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.