Home / 30,303.90-45,423.45-13,661.10

Finding the Fourth Proportional to 30,303.90, 45,423.45 and 13,661.10

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Solution

The fourth proportional to 30,303.90, 45,423.45 and 13,661.10 is: 20,477.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,303.90 : 45,423.45 = 13,661.10 : x
  2. Step 2: Convert to fraction form
    30,303.90/45,423.45 = 13,661.10/x
  3. Step 3: Cross multiply
    30,303.90x = 45,423.45 × 13,661.10
  4. Step 4: Simplify right side
    30,303.90x = 620,534,292.80
  5. Step 5: Solve for x
    x = 620,534,292.80/30,303.90
  6. Step 6: Final answer
    x = 20,477.04

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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.