Home / 38,873.77-53,646.02-21,878.35

Finding the Fourth Proportional to 38,873.77, 53,646.02 and 21,878.35

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Solution

The fourth proportional to 38,873.77, 53,646.02 and 21,878.35 is: 30,192.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,873.77 : 53,646.02 = 21,878.35 : x
  2. Step 2: Convert to fraction form
    38,873.77/53,646.02 = 21,878.35/x
  3. Step 3: Cross multiply
    38,873.77x = 53,646.02 × 21,878.35
  4. Step 4: Simplify right side
    38,873.77x = 1,173,686,322.25
  5. Step 5: Solve for x
    x = 1,173,686,322.25/38,873.77
  6. Step 6: Final answer
    x = 30,192.25

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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.