Home / 30,071.52-45,113.76-12,532.32

Finding the Fourth Proportional to 30,071.52, 45,113.76 and 12,532.32

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Solution

The fourth proportional to 30,071.52, 45,113.76 and 12,532.32 is: 18,801.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,071.52 : 45,113.76 = 12,532.32 : x
  2. Step 2: Convert to fraction form
    30,071.52/45,113.76 = 12,532.32/x
  3. Step 3: Cross multiply
    30,071.52x = 45,113.76 × 12,532.32
  4. Step 4: Simplify right side
    30,071.52x = 565,380,076.72
  5. Step 5: Solve for x
    x = 565,380,076.72/30,071.52
  6. Step 6: Final answer
    x = 18,801.18

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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.