Home / 30,131.55-45,197.08-9,071.53

Finding the Fourth Proportional to 30,131.55, 45,197.08 and 9,071.53

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Solution

The fourth proportional to 30,131.55, 45,197.08 and 9,071.53 is: 13,607.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,131.55 : 45,197.08 = 9,071.53 : x
  2. Step 2: Convert to fraction form
    30,131.55/45,197.08 = 9,071.53/x
  3. Step 3: Cross multiply
    30,131.55x = 45,197.08 × 9,071.53
  4. Step 4: Simplify right side
    30,131.55x = 410,006,531.46
  5. Step 5: Solve for x
    x = 410,006,531.46/30,131.55
  6. Step 6: Final answer
    x = 13,607.22

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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.