Home / 28,316.64-42,478.20-13,516.32

Finding the Fourth Proportional to 28,316.64, 42,478.20 and 13,516.32

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Solution

The fourth proportional to 28,316.64, 42,478.20 and 13,516.32 is: 20,276.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,316.64 : 42,478.20 = 13,516.32 : x
  2. Step 2: Convert to fraction form
    28,316.64/42,478.20 = 13,516.32/x
  3. Step 3: Cross multiply
    28,316.64x = 42,478.20 × 13,516.32
  4. Step 4: Simplify right side
    28,316.64x = 574,148,944.22
  5. Step 5: Solve for x
    x = 574,148,944.22/28,316.64
  6. Step 6: Final answer
    x = 20,276.03

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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.