Home / 69,022.13-103,532.99-21,640.91

Finding the Fourth Proportional to 69,022.13, 103,532.99 and 21,640.91

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Solution

The fourth proportional to 69,022.13, 103,532.99 and 21,640.91 is: 32,461.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,022.13 : 103,532.99 = 21,640.91 : x
  2. Step 2: Convert to fraction form
    69,022.13/103,532.99 = 21,640.91/x
  3. Step 3: Cross multiply
    69,022.13x = 103,532.99 × 21,640.91
  4. Step 4: Simplify right side
    69,022.13x = 2,240,547,492.75
  5. Step 5: Solve for x
    x = 2,240,547,492.75/69,022.13
  6. Step 6: Final answer
    x = 32,461.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.