Home / 28,215.64-38,950.11-18,020.02

Finding the Fourth Proportional to 28,215.64, 38,950.11 and 18,020.02

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Solution

The fourth proportional to 28,215.64, 38,950.11 and 18,020.02 is: 24,875.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,215.64 : 38,950.11 = 18,020.02 : x
  2. Step 2: Convert to fraction form
    28,215.64/38,950.11 = 18,020.02/x
  3. Step 3: Cross multiply
    28,215.64x = 38,950.11 × 18,020.02
  4. Step 4: Simplify right side
    28,215.64x = 701,881,476.35
  5. Step 5: Solve for x
    x = 701,881,476.35/28,215.64
  6. Step 6: Final answer
    x = 24,875.62

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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.