Home / 34,690.12-47,879.86-21,935.16

Finding the Fourth Proportional to 34,690.12, 47,879.86 and 21,935.16

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Solution

The fourth proportional to 34,690.12, 47,879.86 and 21,935.16 is: 30,275.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,690.12 : 47,879.86 = 21,935.16 : x
  2. Step 2: Convert to fraction form
    34,690.12/47,879.86 = 21,935.16/x
  3. Step 3: Cross multiply
    34,690.12x = 47,879.86 × 21,935.16
  4. Step 4: Simplify right side
    34,690.12x = 1,050,252,389.88
  5. Step 5: Solve for x
    x = 1,050,252,389.88/34,690.12
  6. Step 6: Final answer
    x = 30,275.26

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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.