Home / 25,021.15-34,528.88-13,690.48

Finding the Fourth Proportional to 25,021.15, 34,528.88 and 13,690.48

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Solution

The fourth proportional to 25,021.15, 34,528.88 and 13,690.48 is: 18,892.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,021.15 : 34,528.88 = 13,690.48 : x
  2. Step 2: Convert to fraction form
    25,021.15/34,528.88 = 13,690.48/x
  3. Step 3: Cross multiply
    25,021.15x = 34,528.88 × 13,690.48
  4. Step 4: Simplify right side
    25,021.15x = 472,716,941.06
  5. Step 5: Solve for x
    x = 472,716,941.06/25,021.15
  6. Step 6: Final answer
    x = 18,892.69

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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.