Home / 21,232.45-31,848.59-5,437.45

Finding the Fourth Proportional to 21,232.45, 31,848.59 and 5,437.45

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Solution

The fourth proportional to 21,232.45, 31,848.59 and 5,437.45 is: 8,156.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,232.45 : 31,848.59 = 5,437.45 : x
  2. Step 2: Convert to fraction form
    21,232.45/31,848.59 = 5,437.45/x
  3. Step 3: Cross multiply
    21,232.45x = 31,848.59 × 5,437.45
  4. Step 4: Simplify right side
    21,232.45x = 173,175,088.51
  5. Step 5: Solve for x
    x = 173,175,088.51/21,232.45
  6. Step 6: Final answer
    x = 8,156.15

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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.