Home / 42,836.16-64,257.48-13,256.98

Finding the Fourth Proportional to 42,836.16, 64,257.48 and 13,256.98

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Solution

The fourth proportional to 42,836.16, 64,257.48 and 13,256.98 is: 19,886.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,836.16 : 64,257.48 = 13,256.98 : x
  2. Step 2: Convert to fraction form
    42,836.16/64,257.48 = 13,256.98/x
  3. Step 3: Cross multiply
    42,836.16x = 64,257.48 × 13,256.98
  4. Step 4: Simplify right side
    42,836.16x = 851,860,127.21
  5. Step 5: Solve for x
    x = 851,860,127.21/42,836.16
  6. Step 6: Final answer
    x = 19,886.47

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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.