Home / 42,829.18-64,256.91-19,156.64

Finding the Fourth Proportional to 42,829.18, 64,256.91 and 19,156.64

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Solution

The fourth proportional to 42,829.18, 64,256.91 and 19,156.64 is: 28,740.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,829.18 : 64,256.91 = 19,156.64 : x
  2. Step 2: Convert to fraction form
    42,829.18/64,256.91 = 19,156.64/x
  3. Step 3: Cross multiply
    42,829.18x = 64,256.91 × 19,156.64
  4. Step 4: Simplify right side
    42,829.18x = 1,230,946,075.31
  5. Step 5: Solve for x
    x = 1,230,946,075.31/42,829.18
  6. Step 6: Final answer
    x = 28,740.83

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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.