Home / 47,957.40-71,929.62-12,899.16

Finding the Fourth Proportional to 47,957.40, 71,929.62 and 12,899.16

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Solution

The fourth proportional to 47,957.40, 71,929.62 and 12,899.16 is: 19,347.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,957.40 : 71,929.62 = 12,899.16 : x
  2. Step 2: Convert to fraction form
    47,957.40/71,929.62 = 12,899.16/x
  3. Step 3: Cross multiply
    47,957.40x = 71,929.62 × 12,899.16
  4. Step 4: Simplify right side
    47,957.40x = 927,831,677.12
  5. Step 5: Solve for x
    x = 927,831,677.12/47,957.40
  6. Step 6: Final answer
    x = 19,347.00

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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.