Home / 28,412.14-42,622.99-8,686.08

Finding the Fourth Proportional to 28,412.14, 42,622.99 and 8,686.08

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Solution

The fourth proportional to 28,412.14, 42,622.99 and 8,686.08 is: 13,030.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,412.14 : 42,622.99 = 8,686.08 : x
  2. Step 2: Convert to fraction form
    28,412.14/42,622.99 = 8,686.08/x
  3. Step 3: Cross multiply
    28,412.14x = 42,622.99 × 8,686.08
  4. Step 4: Simplify right side
    28,412.14x = 370,226,700.98
  5. Step 5: Solve for x
    x = 370,226,700.98/28,412.14
  6. Step 6: Final answer
    x = 13,030.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.