Home / 43,278.64-59,677.39-28,143.21

Finding the Fourth Proportional to 43,278.64, 59,677.39 and 28,143.21

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Solution

The fourth proportional to 43,278.64, 59,677.39 and 28,143.21 is: 38,806.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,278.64 : 59,677.39 = 28,143.21 : x
  2. Step 2: Convert to fraction form
    43,278.64/59,677.39 = 28,143.21/x
  3. Step 3: Cross multiply
    43,278.64x = 59,677.39 × 28,143.21
  4. Step 4: Simplify right side
    43,278.64x = 1,679,513,577.99
  5. Step 5: Solve for x
    x = 1,679,513,577.99/43,278.64
  6. Step 6: Final answer
    x = 38,806.99

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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.