Home / 21,756.51-30,024.59-12,325.07

Finding the Fourth Proportional to 21,756.51, 30,024.59 and 12,325.07

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Solution

The fourth proportional to 21,756.51, 30,024.59 and 12,325.07 is: 17,008.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,756.51 : 30,024.59 = 12,325.07 : x
  2. Step 2: Convert to fraction form
    21,756.51/30,024.59 = 12,325.07/x
  3. Step 3: Cross multiply
    21,756.51x = 30,024.59 × 12,325.07
  4. Step 4: Simplify right side
    21,756.51x = 370,055,173.47
  5. Step 5: Solve for x
    x = 370,055,173.47/21,756.51
  6. Step 6: Final answer
    x = 17,008.94

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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.