Home / 20,254.64-30,363.20-10,372.16

Finding the Fourth Proportional to 20,254.64, 30,363.20 and 10,372.16

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Solution

The fourth proportional to 20,254.64, 30,363.20 and 10,372.16 is: 15,548.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,254.64 : 30,363.20 = 10,372.16 : x
  2. Step 2: Convert to fraction form
    20,254.64/30,363.20 = 10,372.16/x
  3. Step 3: Cross multiply
    20,254.64x = 30,363.20 × 10,372.16
  4. Step 4: Simplify right side
    20,254.64x = 314,931,968.51
  5. Step 5: Solve for x
    x = 314,931,968.51/20,254.64
  6. Step 6: Final answer
    x = 15,548.63

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1.5x scale

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.