Home / 30,461.06-45,668.43-21,076.13

Finding the Fourth Proportional to 30,461.06, 45,668.43 and 21,076.13

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Solution

The fourth proportional to 30,461.06, 45,668.43 and 21,076.13 is: 31,598.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,461.06 : 45,668.43 = 21,076.13 : x
  2. Step 2: Convert to fraction form
    30,461.06/45,668.43 = 21,076.13/x
  3. Step 3: Cross multiply
    30,461.06x = 45,668.43 × 21,076.13
  4. Step 4: Simplify right side
    30,461.06x = 962,513,539.23
  5. Step 5: Solve for x
    x = 962,513,539.23/30,461.06
  6. Step 6: Final answer
    x = 31,598.17

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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.