Home / 30,029.16-45,045.36-7,842.60

Finding the Fourth Proportional to 30,029.16, 45,045.36 and 7,842.60

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Solution

The fourth proportional to 30,029.16, 45,045.36 and 7,842.60 is: 11,764.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,029.16 : 45,045.36 = 7,842.60 : x
  2. Step 2: Convert to fraction form
    30,029.16/45,045.36 = 7,842.60/x
  3. Step 3: Cross multiply
    30,029.16x = 45,045.36 × 7,842.60
  4. Step 4: Simplify right side
    30,029.16x = 353,272,740.34
  5. Step 5: Solve for x
    x = 353,272,740.34/30,029.16
  6. Step 6: Final answer
    x = 11,764.32

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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.