Home / 30,301.20-45,460.76-13,666.32

Finding the Fourth Proportional to 30,301.20, 45,460.76 and 13,666.32

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Solution

The fourth proportional to 30,301.20, 45,460.76 and 13,666.32 is: 20,503.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,301.20 : 45,460.76 = 13,666.32 : x
  2. Step 2: Convert to fraction form
    30,301.20/45,460.76 = 13,666.32/x
  3. Step 3: Cross multiply
    30,301.20x = 45,460.76 × 13,666.32
  4. Step 4: Simplify right side
    30,301.20x = 621,281,293.60
  5. Step 5: Solve for x
    x = 621,281,293.60/30,301.20
  6. Step 6: Final answer
    x = 20,503.52

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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.