Home / 35,987.68-49,660.86-20,879.16

Finding the Fourth Proportional to 35,987.68, 49,660.86 and 20,879.16

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Solution

The fourth proportional to 35,987.68, 49,660.86 and 20,879.16 is: 28,812.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,987.68 : 49,660.86 = 20,879.16 : x
  2. Step 2: Convert to fraction form
    35,987.68/49,660.86 = 20,879.16/x
  3. Step 3: Cross multiply
    35,987.68x = 49,660.86 × 20,879.16
  4. Step 4: Simplify right side
    35,987.68x = 1,036,877,041.68
  5. Step 5: Solve for x
    x = 1,036,877,041.68/35,987.68
  6. Step 6: Final answer
    x = 28,812.00

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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.