Home / 21,762.90-30,032.23-12,331.46

Finding the Fourth Proportional to 21,762.90, 30,032.23 and 12,331.46

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Solution

The fourth proportional to 21,762.90, 30,032.23 and 12,331.46 is: 17,017.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,762.90 : 30,032.23 = 12,331.46 : x
  2. Step 2: Convert to fraction form
    21,762.90/30,032.23 = 12,331.46/x
  3. Step 3: Cross multiply
    21,762.90x = 30,032.23 × 12,331.46
  4. Step 4: Simplify right side
    21,762.90x = 370,341,242.96
  5. Step 5: Solve for x
    x = 370,341,242.96/21,762.90
  6. Step 6: Final answer
    x = 17,017.09

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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.