Home / 38,278.08-52,821-21,282.60

Finding the Fourth Proportional to 38,278.08, 52,821 and 21,282.60

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Solution

The fourth proportional to 38,278.08, 52,821 and 21,282.60 is: 29,368.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,278.08 : 52,821 = 21,282.60 : x
  2. Step 2: Convert to fraction form
    38,278.08/52,821 = 21,282.60/x
  3. Step 3: Cross multiply
    38,278.08x = 52,821 × 21,282.60
  4. Step 4: Simplify right side
    38,278.08x = 1,124,168,214.60
  5. Step 5: Solve for x
    x = 1,124,168,214.60/38,278.08
  6. Step 6: Final answer
    x = 29,368.46

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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.