Home / 28,955.76-43,445.79-12,319.38

Finding the Fourth Proportional to 28,955.76, 43,445.79 and 12,319.38

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Solution

The fourth proportional to 28,955.76, 43,445.79 and 12,319.38 is: 18,484.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,955.76 : 43,445.79 = 12,319.38 : x
  2. Step 2: Convert to fraction form
    28,955.76/43,445.79 = 12,319.38/x
  3. Step 3: Cross multiply
    28,955.76x = 43,445.79 × 12,319.38
  4. Step 4: Simplify right side
    28,955.76x = 535,225,196.41
  5. Step 5: Solve for x
    x = 535,225,196.41/28,955.76
  6. Step 6: Final answer
    x = 18,484.24

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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.