Home / 38,394.53-52,988.76-21,400.32

Finding the Fourth Proportional to 38,394.53, 52,988.76 and 21,400.32

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Solution

The fourth proportional to 38,394.53, 52,988.76 and 21,400.32 is: 29,534.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,394.53 : 52,988.76 = 21,400.32 : x
  2. Step 2: Convert to fraction form
    38,394.53/52,988.76 = 21,400.32/x
  3. Step 3: Cross multiply
    38,394.53x = 52,988.76 × 21,400.32
  4. Step 4: Simplify right side
    38,394.53x = 1,133,976,420.40
  5. Step 5: Solve for x
    x = 1,133,976,420.40/38,394.53
  6. Step 6: Final answer
    x = 29,534.84

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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.