Home / 30,204.04-41,667.10-21,256.51

Finding the Fourth Proportional to 30,204.04, 41,667.10 and 21,256.51

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Solution

The fourth proportional to 30,204.04, 41,667.10 and 21,256.51 is: 29,323.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,204.04 : 41,667.10 = 21,256.51 : x
  2. Step 2: Convert to fraction form
    30,204.04/41,667.10 = 21,256.51/x
  3. Step 3: Cross multiply
    30,204.04x = 41,667.10 × 21,256.51
  4. Step 4: Simplify right side
    30,204.04x = 885,697,127.82
  5. Step 5: Solve for x
    x = 885,697,127.82/30,204.04
  6. Step 6: Final answer
    x = 29,323.80

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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.