Home / 25,199.29-34,778.85-15,133.28

Finding the Fourth Proportional to 25,199.29, 34,778.85 and 15,133.28

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Solution

The fourth proportional to 25,199.29, 34,778.85 and 15,133.28 is: 20,886.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,199.29 : 34,778.85 = 15,133.28 : x
  2. Step 2: Convert to fraction form
    25,199.29/34,778.85 = 15,133.28/x
  3. Step 3: Cross multiply
    25,199.29x = 34,778.85 × 15,133.28
  4. Step 4: Simplify right side
    25,199.29x = 526,318,075.13
  5. Step 5: Solve for x
    x = 526,318,075.13/25,199.29
  6. Step 6: Final answer
    x = 20,886.23

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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.