Home / 42,457.44-58,616.86-28,129.40

Finding the Fourth Proportional to 42,457.44, 58,616.86 and 28,129.40

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Solution

The fourth proportional to 42,457.44, 58,616.86 and 28,129.40 is: 38,835.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,457.44 : 58,616.86 = 28,129.40 : x
  2. Step 2: Convert to fraction form
    42,457.44/58,616.86 = 28,129.40/x
  3. Step 3: Cross multiply
    42,457.44x = 58,616.86 × 28,129.40
  4. Step 4: Simplify right side
    42,457.44x = 1,648,857,101.68
  5. Step 5: Solve for x
    x = 1,648,857,101.68/42,457.44
  6. Step 6: Final answer
    x = 38,835.53

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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.