Home / 35,987.29-49,646.40-20,871.19

Finding the Fourth Proportional to 35,987.29, 49,646.40 and 20,871.19

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Solution

The fourth proportional to 35,987.29, 49,646.40 and 20,871.19 is: 28,792.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,987.29 : 49,646.40 = 20,871.19 : x
  2. Step 2: Convert to fraction form
    35,987.29/49,646.40 = 20,871.19/x
  3. Step 3: Cross multiply
    35,987.29x = 49,646.40 × 20,871.19
  4. Step 4: Simplify right side
    35,987.29x = 1,036,179,447.22
  5. Step 5: Solve for x
    x = 1,036,179,447.22/35,987.29
  6. Step 6: Final answer
    x = 28,792.93

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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.