Home / 28,458.36-42,717.60-15,989.04

Finding the Fourth Proportional to 28,458.36, 42,717.60 and 15,989.04

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Solution

The fourth proportional to 28,458.36, 42,717.60 and 15,989.04 is: 24,000.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,458.36 : 42,717.60 = 15,989.04 : x
  2. Step 2: Convert to fraction form
    28,458.36/42,717.60 = 15,989.04/x
  3. Step 3: Cross multiply
    28,458.36x = 42,717.60 × 15,989.04
  4. Step 4: Simplify right side
    28,458.36x = 683,013,415.10
  5. Step 5: Solve for x
    x = 683,013,415.10/28,458.36
  6. Step 6: Final answer
    x = 24,000.45

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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.