Home / 28,370.08-42,574.48-9,902.08

Finding the Fourth Proportional to 28,370.08, 42,574.48 and 9,902.08

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Solution

The fourth proportional to 28,370.08, 42,574.48 and 9,902.08 is: 14,859.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,370.08 : 42,574.48 = 9,902.08 : x
  2. Step 2: Convert to fraction form
    28,370.08/42,574.48 = 9,902.08/x
  3. Step 3: Cross multiply
    28,370.08x = 42,574.48 × 9,902.08
  4. Step 4: Simplify right side
    28,370.08x = 421,575,906.92
  5. Step 5: Solve for x
    x = 421,575,906.92/28,370.08
  6. Step 6: Final answer
    x = 14,859.88

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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.