Home / 38,398.42-52,985.10-21,398.50

Finding the Fourth Proportional to 38,398.42, 52,985.10 and 21,398.50

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Solution

The fourth proportional to 38,398.42, 52,985.10 and 21,398.50 is: 29,527.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,398.42 : 52,985.10 = 21,398.50 : x
  2. Step 2: Convert to fraction form
    38,398.42/52,985.10 = 21,398.50/x
  3. Step 3: Cross multiply
    38,398.42x = 52,985.10 × 21,398.50
  4. Step 4: Simplify right side
    38,398.42x = 1,133,801,662.35
  5. Step 5: Solve for x
    x = 1,133,801,662.35/38,398.42
  6. Step 6: Final answer
    x = 29,527.30

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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.