Home / 22,538.12-31,101.69-12,328.99

Finding the Fourth Proportional to 22,538.12, 31,101.69 and 12,328.99

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Solution

The fourth proportional to 22,538.12, 31,101.69 and 12,328.99 is: 17,013.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,538.12 : 31,101.69 = 12,328.99 : x
  2. Step 2: Convert to fraction form
    22,538.12/31,101.69 = 12,328.99/x
  3. Step 3: Cross multiply
    22,538.12x = 31,101.69 × 12,328.99
  4. Step 4: Simplify right side
    22,538.12x = 383,452,269.48
  5. Step 5: Solve for x
    x = 383,452,269.48/22,538.12
  6. Step 6: Final answer
    x = 17,013.50

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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.