Home / 30,529.15-42,126.94-16,916.80

Finding the Fourth Proportional to 30,529.15, 42,126.94 and 16,916.80

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Solution

The fourth proportional to 30,529.15, 42,126.94 and 16,916.80 is: 23,343.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,529.15 : 42,126.94 = 16,916.80 : x
  2. Step 2: Convert to fraction form
    30,529.15/42,126.94 = 16,916.80/x
  3. Step 3: Cross multiply
    30,529.15x = 42,126.94 × 16,916.80
  4. Step 4: Simplify right side
    30,529.15x = 712,652,918.25
  5. Step 5: Solve for x
    x = 712,652,918.25/30,529.15
  6. Step 6: Final answer
    x = 23,343.36

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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.