Home / 36,681.31-55,011.80-12,985.73

Finding the Fourth Proportional to 36,681.31, 55,011.80 and 12,985.73

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Solution

The fourth proportional to 36,681.31, 55,011.80 and 12,985.73 is: 19,475.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,681.31 : 55,011.80 = 12,985.73 : x
  2. Step 2: Convert to fraction form
    36,681.31/55,011.80 = 12,985.73/x
  3. Step 3: Cross multiply
    36,681.31x = 55,011.80 × 12,985.73
  4. Step 4: Simplify right side
    36,681.31x = 714,368,316.69
  5. Step 5: Solve for x
    x = 714,368,316.69/36,681.31
  6. Step 6: Final answer
    x = 19,475.00

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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.