Home / 31,063.84-42,868.64-16,916.64

Finding the Fourth Proportional to 31,063.84, 42,868.64 and 16,916.64

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Solution

The fourth proportional to 31,063.84, 42,868.64 and 16,916.64 is: 23,345.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,063.84 : 42,868.64 = 16,916.64 : x
  2. Step 2: Convert to fraction form
    31,063.84/42,868.64 = 16,916.64/x
  3. Step 3: Cross multiply
    31,063.84x = 42,868.64 × 16,916.64
  4. Step 4: Simplify right side
    31,063.84x = 725,193,350.17
  5. Step 5: Solve for x
    x = 725,193,350.17/31,063.84
  6. Step 6: Final answer
    x = 23,345.26

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1.5x scale

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.