Home / 30,161.36-45,242.04-9,380.72

Finding the Fourth Proportional to 30,161.36, 45,242.04 and 9,380.72

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Solution

The fourth proportional to 30,161.36, 45,242.04 and 9,380.72 is: 14,071.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,161.36 : 45,242.04 = 9,380.72 : x
  2. Step 2: Convert to fraction form
    30,161.36/45,242.04 = 9,380.72/x
  3. Step 3: Cross multiply
    30,161.36x = 45,242.04 × 9,380.72
  4. Step 4: Simplify right side
    30,161.36x = 424,402,909.47
  5. Step 5: Solve for x
    x = 424,402,909.47/30,161.36
  6. Step 6: Final answer
    x = 14,071.08

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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.