Home / 22,852.94-31,538.30-12,781.40

Finding the Fourth Proportional to 22,852.94, 31,538.30 and 12,781.40

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Solution

The fourth proportional to 22,852.94, 31,538.30 and 12,781.40 is: 17,639.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,852.94 : 31,538.30 = 12,781.40 : x
  2. Step 2: Convert to fraction form
    22,852.94/31,538.30 = 12,781.40/x
  3. Step 3: Cross multiply
    22,852.94x = 31,538.30 × 12,781.40
  4. Step 4: Simplify right side
    22,852.94x = 403,103,406.02
  5. Step 5: Solve for x
    x = 403,103,406.02/22,852.94
  6. Step 6: Final answer
    x = 17,639.02

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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.