Home / 30,289.35-45,415.80-15,527.10

Finding the Fourth Proportional to 30,289.35, 45,415.80 and 15,527.10

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Solution

The fourth proportional to 30,289.35, 45,415.80 and 15,527.10 is: 23,281.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,289.35 : 45,415.80 = 15,527.10 : x
  2. Step 2: Convert to fraction form
    30,289.35/45,415.80 = 15,527.10/x
  3. Step 3: Cross multiply
    30,289.35x = 45,415.80 × 15,527.10
  4. Step 4: Simplify right side
    30,289.35x = 705,175,668.18
  5. Step 5: Solve for x
    x = 705,175,668.18/30,289.35
  6. Step 6: Final answer
    x = 23,281.31

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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.