Home / 29,810.77-41,140.91-19,721.71

Finding the Fourth Proportional to 29,810.77, 41,140.91 and 19,721.71

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Solution

The fourth proportional to 29,810.77, 41,140.91 and 19,721.71 is: 27,217.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,810.77 : 41,140.91 = 19,721.71 : x
  2. Step 2: Convert to fraction form
    29,810.77/41,140.91 = 19,721.71/x
  3. Step 3: Cross multiply
    29,810.77x = 41,140.91 × 19,721.71
  4. Step 4: Simplify right side
    29,810.77x = 811,369,196.89
  5. Step 5: Solve for x
    x = 811,369,196.89/29,810.77
  6. Step 6: Final answer
    x = 27,217.32

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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.