Home / 38,988.17-53,803.64-21,083.02

Finding the Fourth Proportional to 38,988.17, 53,803.64 and 21,083.02

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Solution

The fourth proportional to 38,988.17, 53,803.64 and 21,083.02 is: 29,094.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,988.17 : 53,803.64 = 21,083.02 : x
  2. Step 2: Convert to fraction form
    38,988.17/53,803.64 = 21,083.02/x
  3. Step 3: Cross multiply
    38,988.17x = 53,803.64 × 21,083.02
  4. Step 4: Simplify right side
    38,988.17x = 1,134,343,136.39
  5. Step 5: Solve for x
    x = 1,134,343,136.39/38,988.17
  6. Step 6: Final answer
    x = 29,094.55

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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.