Home / 39,985.95-55,186.78-24,681.43

Finding the Fourth Proportional to 39,985.95, 55,186.78 and 24,681.43

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Solution

The fourth proportional to 39,985.95, 55,186.78 and 24,681.43 is: 34,064.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,985.95 : 55,186.78 = 24,681.43 : x
  2. Step 2: Convert to fraction form
    39,985.95/55,186.78 = 24,681.43/x
  3. Step 3: Cross multiply
    39,985.95x = 55,186.78 × 24,681.43
  4. Step 4: Simplify right side
    39,985.95x = 1,362,088,890.97
  5. Step 5: Solve for x
    x = 1,362,088,890.97/39,985.95
  6. Step 6: Final answer
    x = 34,064.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.