Home / 28,458.72-42,877.80-25,688.52

Finding the Fourth Proportional to 28,458.72, 42,877.80 and 25,688.52

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Solution

The fourth proportional to 28,458.72, 42,877.80 and 25,688.52 is: 38,704.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,458.72 : 42,877.80 = 25,688.52 : x
  2. Step 2: Convert to fraction form
    28,458.72/42,877.80 = 25,688.52/x
  3. Step 3: Cross multiply
    28,458.72x = 42,877.80 × 25,688.52
  4. Step 4: Simplify right side
    28,458.72x = 1,101,467,222.86
  5. Step 5: Solve for x
    x = 1,101,467,222.86/28,458.72
  6. Step 6: Final answer
    x = 38,704.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.