Home / 21,820.16-32,730.24-10,127

Finding the Fourth Proportional to 21,820.16, 32,730.24 and 10,127

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Solution

The fourth proportional to 21,820.16, 32,730.24 and 10,127 is: 15,190.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,820.16 : 32,730.24 = 10,127 : x
  2. Step 2: Convert to fraction form
    21,820.16/32,730.24 = 10,127/x
  3. Step 3: Cross multiply
    21,820.16x = 32,730.24 × 10,127
  4. Step 4: Simplify right side
    21,820.16x = 331,459,140.48
  5. Step 5: Solve for x
    x = 331,459,140.48/21,820.16
  6. Step 6: Final answer
    x = 15,190.50

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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.