Home / 38,148.32-52,643.22-21,153.26

Finding the Fourth Proportional to 38,148.32, 52,643.22 and 21,153.26

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Solution

The fourth proportional to 38,148.32, 52,643.22 and 21,153.26 is: 29,190.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,148.32 : 52,643.22 = 21,153.26 : x
  2. Step 2: Convert to fraction form
    38,148.32/52,643.22 = 21,153.26/x
  3. Step 3: Cross multiply
    38,148.32x = 52,643.22 × 21,153.26
  4. Step 4: Simplify right side
    38,148.32x = 1,113,575,719.90
  5. Step 5: Solve for x
    x = 1,113,575,719.90/38,148.32
  6. Step 6: Final answer
    x = 29,190.69

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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.