Home / 30,737.87-42,417.84-17,309.28

Finding the Fourth Proportional to 30,737.87, 42,417.84 and 17,309.28

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Solution

The fourth proportional to 30,737.87, 42,417.84 and 17,309.28 is: 23,886.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,737.87 : 42,417.84 = 17,309.28 : x
  2. Step 2: Convert to fraction form
    30,737.87/42,417.84 = 17,309.28/x
  3. Step 3: Cross multiply
    30,737.87x = 42,417.84 × 17,309.28
  4. Step 4: Simplify right side
    30,737.87x = 734,222,269.56
  5. Step 5: Solve for x
    x = 734,222,269.56/30,737.87
  6. Step 6: Final answer
    x = 23,886.57

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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.