Home / 30,160.30-45,218.58-20,275.06

Finding the Fourth Proportional to 30,160.30, 45,218.58 and 20,275.06

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Solution

The fourth proportional to 30,160.30, 45,218.58 and 20,275.06 is: 30,397.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,160.30 : 45,218.58 = 20,275.06 : x
  2. Step 2: Convert to fraction form
    30,160.30/45,218.58 = 20,275.06/x
  3. Step 3: Cross multiply
    30,160.30x = 45,218.58 × 20,275.06
  4. Step 4: Simplify right side
    30,160.30x = 916,809,422.61
  5. Step 5: Solve for x
    x = 916,809,422.61/30,160.30
  6. Step 6: Final answer
    x = 30,397.89

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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.