Home / 29,681.04-40,903.44-21,725.76

Finding the Fourth Proportional to 29,681.04, 40,903.44 and 21,725.76

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Solution

The fourth proportional to 29,681.04, 40,903.44 and 21,725.76 is: 29,940.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,681.04 : 40,903.44 = 21,725.76 : x
  2. Step 2: Convert to fraction form
    29,681.04/40,903.44 = 21,725.76/x
  3. Step 3: Cross multiply
    29,681.04x = 40,903.44 × 21,725.76
  4. Step 4: Simplify right side
    29,681.04x = 888,658,320.61
  5. Step 5: Solve for x
    x = 888,658,320.61/29,681.04
  6. Step 6: Final answer
    x = 29,940.27

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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.