Home / 42,782.77-64,177.40-11,617.57

Finding the Fourth Proportional to 42,782.77, 64,177.40 and 11,617.57

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Solution

The fourth proportional to 42,782.77, 64,177.40 and 11,617.57 is: 17,427.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,782.77 : 64,177.40 = 11,617.57 : x
  2. Step 2: Convert to fraction form
    42,782.77/64,177.40 = 11,617.57/x
  3. Step 3: Cross multiply
    42,782.77x = 64,177.40 × 11,617.57
  4. Step 4: Simplify right side
    42,782.77x = 745,585,436.92
  5. Step 5: Solve for x
    x = 745,585,436.92/42,782.77
  6. Step 6: Final answer
    x = 17,427.24

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1.5x scale

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.