Home / 42,188.32-58,267.68-28,736.20

Finding the Fourth Proportional to 42,188.32, 58,267.68 and 28,736.20

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Solution

The fourth proportional to 42,188.32, 58,267.68 and 28,736.20 is: 39,688.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,188.32 : 58,267.68 = 28,736.20 : x
  2. Step 2: Convert to fraction form
    42,188.32/58,267.68 = 28,736.20/x
  3. Step 3: Cross multiply
    42,188.32x = 58,267.68 × 28,736.20
  4. Step 4: Simplify right side
    42,188.32x = 1,674,391,706.02
  5. Step 5: Solve for x
    x = 1,674,391,706.02/42,188.32
  6. Step 6: Final answer
    x = 39,688.51

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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.