Home / 38,172.16-52,677.44-21,405.12

Finding the Fourth Proportional to 38,172.16, 52,677.44 and 21,405.12

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Solution

The fourth proportional to 38,172.16, 52,677.44 and 21,405.12 is: 29,538.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,172.16 : 52,677.44 = 21,405.12 : x
  2. Step 2: Convert to fraction form
    38,172.16/52,677.44 = 21,405.12/x
  3. Step 3: Cross multiply
    38,172.16x = 52,677.44 × 21,405.12
  4. Step 4: Simplify right side
    38,172.16x = 1,127,566,924.49
  5. Step 5: Solve for x
    x = 1,127,566,924.49/38,172.16
  6. Step 6: Final answer
    x = 29,538.99

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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.