Home / 20,681.02-31,021.71-7,533.46

Finding the Fourth Proportional to 20,681.02, 31,021.71 and 7,533.46

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Solution

The fourth proportional to 20,681.02, 31,021.71 and 7,533.46 is: 11,300.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,681.02 : 31,021.71 = 7,533.46 : x
  2. Step 2: Convert to fraction form
    20,681.02/31,021.71 = 7,533.46/x
  3. Step 3: Cross multiply
    20,681.02x = 31,021.71 × 7,533.46
  4. Step 4: Simplify right side
    20,681.02x = 233,700,811.42
  5. Step 5: Solve for x
    x = 233,700,811.42/20,681.02
  6. Step 6: Final answer
    x = 11,300.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.