Home / 30,421.20-45,619.26-9,356.10

Finding the Fourth Proportional to 30,421.20, 45,619.26 and 9,356.10

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Solution

The fourth proportional to 30,421.20, 45,619.26 and 9,356.10 is: 14,030.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,421.20 : 45,619.26 = 9,356.10 : x
  2. Step 2: Convert to fraction form
    30,421.20/45,619.26 = 9,356.10/x
  3. Step 3: Cross multiply
    30,421.20x = 45,619.26 × 9,356.10
  4. Step 4: Simplify right side
    30,421.20x = 426,818,358.49
  5. Step 5: Solve for x
    x = 426,818,358.49/30,421.20
  6. Step 6: Final answer
    x = 14,030.29

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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.