Home / 30,813.49-42,522.46-16,666.30

Finding the Fourth Proportional to 30,813.49, 42,522.46 and 16,666.30

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Solution

The fourth proportional to 30,813.49, 42,522.46 and 16,666.30 is: 22,999.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,813.49 : 42,522.46 = 16,666.30 : x
  2. Step 2: Convert to fraction form
    30,813.49/42,522.46 = 16,666.30/x
  3. Step 3: Cross multiply
    30,813.49x = 42,522.46 × 16,666.30
  4. Step 4: Simplify right side
    30,813.49x = 708,692,075.10
  5. Step 5: Solve for x
    x = 708,692,075.10/30,813.49
  6. Step 6: Final answer
    x = 22,999.41

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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.