Home / 21,258.68-31,887.75-9,563.63

Finding the Fourth Proportional to 21,258.68, 31,887.75 and 9,563.63

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Solution

The fourth proportional to 21,258.68, 31,887.75 and 9,563.63 is: 14,345.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,258.68 : 31,887.75 = 9,563.63 : x
  2. Step 2: Convert to fraction form
    21,258.68/31,887.75 = 9,563.63/x
  3. Step 3: Cross multiply
    21,258.68x = 31,887.75 × 9,563.63
  4. Step 4: Simplify right side
    21,258.68x = 304,962,642.53
  5. Step 5: Solve for x
    x = 304,962,642.53/21,258.68
  6. Step 6: Final answer
    x = 14,345.32

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1.5x scale

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.