Home / 30,330.31-45,495.51-15,531.16

Finding the Fourth Proportional to 30,330.31, 45,495.51 and 15,531.16

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Solution

The fourth proportional to 30,330.31, 45,495.51 and 15,531.16 is: 23,296.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,330.31 : 45,495.51 = 15,531.16 : x
  2. Step 2: Convert to fraction form
    30,330.31/45,495.51 = 15,531.16/x
  3. Step 3: Cross multiply
    30,330.31x = 45,495.51 × 15,531.16
  4. Step 4: Simplify right side
    30,330.31x = 706,598,045.09
  5. Step 5: Solve for x
    x = 706,598,045.09/30,330.31
  6. Step 6: Final answer
    x = 23,296.76

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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.