Home / 30,970.55-42,694.36-22,892.29

Finding the Fourth Proportional to 30,970.55, 42,694.36 and 22,892.29

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Solution

The fourth proportional to 30,970.55, 42,694.36 and 22,892.29 is: 31,558.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,970.55 : 42,694.36 = 22,892.29 : x
  2. Step 2: Convert to fraction form
    30,970.55/42,694.36 = 22,892.29/x
  3. Step 3: Cross multiply
    30,970.55x = 42,694.36 × 22,892.29
  4. Step 4: Simplify right side
    30,970.55x = 977,371,506.52
  5. Step 5: Solve for x
    x = 977,371,506.52/30,970.55
  6. Step 6: Final answer
    x = 31,558.09

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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.