Home / 30,694.48-42,345.84-19,360.12

Finding the Fourth Proportional to 30,694.48, 42,345.84 and 19,360.12

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Solution

The fourth proportional to 30,694.48, 42,345.84 and 19,360.12 is: 26,709.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,694.48 : 42,345.84 = 19,360.12 : x
  2. Step 2: Convert to fraction form
    30,694.48/42,345.84 = 19,360.12/x
  3. Step 3: Cross multiply
    30,694.48x = 42,345.84 × 19,360.12
  4. Step 4: Simplify right side
    30,694.48x = 819,820,543.90
  5. Step 5: Solve for x
    x = 819,820,543.90/30,694.48
  6. Step 6: Final answer
    x = 26,709.05

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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.