Home / 25,190.88-34,744.32-19,875.12

Finding the Fourth Proportional to 25,190.88, 34,744.32 and 19,875.12

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Solution

The fourth proportional to 25,190.88, 34,744.32 and 19,875.12 is: 27,412.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,190.88 : 34,744.32 = 19,875.12 : x
  2. Step 2: Convert to fraction form
    25,190.88/34,744.32 = 19,875.12/x
  3. Step 3: Cross multiply
    25,190.88x = 34,744.32 × 19,875.12
  4. Step 4: Simplify right side
    25,190.88x = 690,547,529.32
  5. Step 5: Solve for x
    x = 690,547,529.32/25,190.88
  6. Step 6: Final answer
    x = 27,412.60

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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.