Home / 25,362.81-34,985.84-15,284.85

Finding the Fourth Proportional to 25,362.81, 34,985.84 and 15,284.85

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Solution

The fourth proportional to 25,362.81, 34,985.84 and 15,284.85 is: 21,084.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,362.81 : 34,985.84 = 15,284.85 : x
  2. Step 2: Convert to fraction form
    25,362.81/34,985.84 = 15,284.85/x
  3. Step 3: Cross multiply
    25,362.81x = 34,985.84 × 15,284.85
  4. Step 4: Simplify right side
    25,362.81x = 534,753,240.10
  5. Step 5: Solve for x
    x = 534,753,240.10/25,362.81
  6. Step 6: Final answer
    x = 21,084.15

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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.