Home / 38,643.18-53,324.56-21,646.10

Finding the Fourth Proportional to 38,643.18, 53,324.56 and 21,646.10

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Solution

The fourth proportional to 38,643.18, 53,324.56 and 21,646.10 is: 29,869.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,643.18 : 53,324.56 = 21,646.10 : x
  2. Step 2: Convert to fraction form
    38,643.18/53,324.56 = 21,646.10/x
  3. Step 3: Cross multiply
    38,643.18x = 53,324.56 × 21,646.10
  4. Step 4: Simplify right side
    38,643.18x = 1,154,268,758.22
  5. Step 5: Solve for x
    x = 1,154,268,758.22/38,643.18
  6. Step 6: Final answer
    x = 29,869.92

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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.