Home / 30,207.88-45,291.78-14,415.34

Finding the Fourth Proportional to 30,207.88, 45,291.78 and 14,415.34

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Solution

The fourth proportional to 30,207.88, 45,291.78 and 14,415.34 is: 21,613.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,207.88 : 45,291.78 = 14,415.34 : x
  2. Step 2: Convert to fraction form
    30,207.88/45,291.78 = 14,415.34/x
  3. Step 3: Cross multiply
    30,207.88x = 45,291.78 × 14,415.34
  4. Step 4: Simplify right side
    30,207.88x = 652,896,407.91
  5. Step 5: Solve for x
    x = 652,896,407.91/30,207.88
  6. Step 6: Final answer
    x = 21,613.45

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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.