Home / 25,440.93-35,073.95-21,455.06

Finding the Fourth Proportional to 25,440.93, 35,073.95 and 21,455.06

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Solution

The fourth proportional to 25,440.93, 35,073.95 and 21,455.06 is: 29,578.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,440.93 : 35,073.95 = 21,455.06 : x
  2. Step 2: Convert to fraction form
    25,440.93/35,073.95 = 21,455.06/x
  3. Step 3: Cross multiply
    25,440.93x = 35,073.95 × 21,455.06
  4. Step 4: Simplify right side
    25,440.93x = 752,513,419.04
  5. Step 5: Solve for x
    x = 752,513,419.04/25,440.93
  6. Step 6: Final answer
    x = 29,578.85

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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.