Home / 21,995.02-30,352.75-12,434.75

Finding the Fourth Proportional to 21,995.02, 30,352.75 and 12,434.75

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Solution

The fourth proportional to 21,995.02, 30,352.75 and 12,434.75 is: 17,159.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,995.02 : 30,352.75 = 12,434.75 : x
  2. Step 2: Convert to fraction form
    21,995.02/30,352.75 = 12,434.75/x
  3. Step 3: Cross multiply
    21,995.02x = 30,352.75 × 12,434.75
  4. Step 4: Simplify right side
    21,995.02x = 377,428,858.06
  5. Step 5: Solve for x
    x = 377,428,858.06/21,995.02
  6. Step 6: Final answer
    x = 17,159.74

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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.