Home / 47,127.51-65,028.71-28,000.21

Finding the Fourth Proportional to 47,127.51, 65,028.71 and 28,000.21

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Solution

The fourth proportional to 47,127.51, 65,028.71 and 28,000.21 is: 38,635.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,127.51 : 65,028.71 = 28,000.21 : x
  2. Step 2: Convert to fraction form
    47,127.51/65,028.71 = 28,000.21/x
  3. Step 3: Cross multiply
    47,127.51x = 65,028.71 × 28,000.21
  4. Step 4: Simplify right side
    47,127.51x = 1,820,817,254.52
  5. Step 5: Solve for x
    x = 1,820,817,254.52/47,127.51
  6. Step 6: Final answer
    x = 38,635.97

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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.