Home / 30,417.72-45,631.18-13,777.36

Finding the Fourth Proportional to 30,417.72, 45,631.18 and 13,777.36

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Solution

The fourth proportional to 30,417.72, 45,631.18 and 13,777.36 is: 20,668.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,417.72 : 45,631.18 = 13,777.36 : x
  2. Step 2: Convert to fraction form
    30,417.72/45,631.18 = 13,777.36/x
  3. Step 3: Cross multiply
    30,417.72x = 45,631.18 × 13,777.36
  4. Step 4: Simplify right side
    30,417.72x = 628,677,194.08
  5. Step 5: Solve for x
    x = 628,677,194.08/30,417.72
  6. Step 6: Final answer
    x = 20,668.12

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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.