Home / 38,774.51-53,508.50-21,779.02

Finding the Fourth Proportional to 38,774.51, 53,508.50 and 21,779.02

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Solution

The fourth proportional to 38,774.51, 53,508.50 and 21,779.02 is: 30,054.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,774.51 : 53,508.50 = 21,779.02 : x
  2. Step 2: Convert to fraction form
    38,774.51/53,508.50 = 21,779.02/x
  3. Step 3: Cross multiply
    38,774.51x = 53,508.50 × 21,779.02
  4. Step 4: Simplify right side
    38,774.51x = 1,165,362,449.00
  5. Step 5: Solve for x
    x = 1,165,362,449.00/38,774.51
  6. Step 6: Final answer
    x = 30,054.86

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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.