Home / 30,257.60-45,386.40-17,135.60

Finding the Fourth Proportional to 30,257.60, 45,386.40 and 17,135.60

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Solution

The fourth proportional to 30,257.60, 45,386.40 and 17,135.60 is: 25,703.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,257.60 : 45,386.40 = 17,135.60 : x
  2. Step 2: Convert to fraction form
    30,257.60/45,386.40 = 17,135.60/x
  3. Step 3: Cross multiply
    30,257.60x = 45,386.40 × 17,135.60
  4. Step 4: Simplify right side
    30,257.60x = 777,723,195.84
  5. Step 5: Solve for x
    x = 777,723,195.84/30,257.60
  6. Step 6: Final answer
    x = 25,703.40

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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.