Home / 21,638.65-29,841.32-16,603.08

Finding the Fourth Proportional to 21,638.65, 29,841.32 and 16,603.08

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Solution

The fourth proportional to 21,638.65, 29,841.32 and 16,603.08 is: 22,896.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,638.65 : 29,841.32 = 16,603.08 : x
  2. Step 2: Convert to fraction form
    21,638.65/29,841.32 = 16,603.08/x
  3. Step 3: Cross multiply
    21,638.65x = 29,841.32 × 16,603.08
  4. Step 4: Simplify right side
    21,638.65x = 495,457,823.27
  5. Step 5: Solve for x
    x = 495,457,823.27/21,638.65
  6. Step 6: Final answer
    x = 22,896.89

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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.