Home / 38,666.32-53,359.51-21,899.32

Finding the Fourth Proportional to 38,666.32, 53,359.51 and 21,899.32

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Solution

The fourth proportional to 38,666.32, 53,359.51 and 21,899.32 is: 30,221.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,666.32 : 53,359.51 = 21,899.32 : x
  2. Step 2: Convert to fraction form
    38,666.32/53,359.51 = 21,899.32/x
  3. Step 3: Cross multiply
    38,666.32x = 53,359.51 × 21,899.32
  4. Step 4: Simplify right side
    38,666.32x = 1,168,536,984.53
  5. Step 5: Solve for x
    x = 1,168,536,984.53/38,666.32
  6. Step 6: Final answer
    x = 30,221.06

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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.