Home / 21,847.02-30,130.28-18,460.58

Finding the Fourth Proportional to 21,847.02, 30,130.28 and 18,460.58

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Solution

The fourth proportional to 21,847.02, 30,130.28 and 18,460.58 is: 25,459.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,847.02 : 30,130.28 = 18,460.58 : x
  2. Step 2: Convert to fraction form
    21,847.02/30,130.28 = 18,460.58/x
  3. Step 3: Cross multiply
    21,847.02x = 30,130.28 × 18,460.58
  4. Step 4: Simplify right side
    21,847.02x = 556,222,270.64
  5. Step 5: Solve for x
    x = 556,222,270.64/21,847.02
  6. Step 6: Final answer
    x = 25,459.87

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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.