Home / 30,720.54-46,078.65-17,531.58

Finding the Fourth Proportional to 30,720.54, 46,078.65 and 17,531.58

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Solution

The fourth proportional to 30,720.54, 46,078.65 and 17,531.58 is: 26,296.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,720.54 : 46,078.65 = 17,531.58 : x
  2. Step 2: Convert to fraction form
    30,720.54/46,078.65 = 17,531.58/x
  3. Step 3: Cross multiply
    30,720.54x = 46,078.65 × 17,531.58
  4. Step 4: Simplify right side
    30,720.54x = 807,831,538.77
  5. Step 5: Solve for x
    x = 807,831,538.77/30,720.54
  6. Step 6: Final answer
    x = 26,296.14

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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.