Home / 56,431.76-84,647.57-16,988.81

Finding the Fourth Proportional to 56,431.76, 84,647.57 and 16,988.81

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Solution

The fourth proportional to 56,431.76, 84,647.57 and 16,988.81 is: 25,483.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,431.76 : 84,647.57 = 16,988.81 : x
  2. Step 2: Convert to fraction form
    56,431.76/84,647.57 = 16,988.81/x
  3. Step 3: Cross multiply
    56,431.76x = 84,647.57 × 16,988.81
  4. Step 4: Simplify right side
    56,431.76x = 1,438,060,975.51
  5. Step 5: Solve for x
    x = 1,438,060,975.51/56,431.76
  6. Step 6: Final answer
    x = 25,483.19

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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.