Home / 35,780.16-49,372.38-19,860.51

Finding the Fourth Proportional to 35,780.16, 49,372.38 and 19,860.51

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Solution

The fourth proportional to 35,780.16, 49,372.38 and 19,860.51 is: 27,405.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,780.16 : 49,372.38 = 19,860.51 : x
  2. Step 2: Convert to fraction form
    35,780.16/49,372.38 = 19,860.51/x
  3. Step 3: Cross multiply
    35,780.16x = 49,372.38 × 19,860.51
  4. Step 4: Simplify right side
    35,780.16x = 980,560,646.71
  5. Step 5: Solve for x
    x = 980,560,646.71/35,780.16
  6. Step 6: Final answer
    x = 27,405.15

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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.