Home / 42,187.32-58,266.30-28,735.20

Finding the Fourth Proportional to 42,187.32, 58,266.30 and 28,735.20

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Solution

The fourth proportional to 42,187.32, 58,266.30 and 28,735.20 is: 39,687.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,187.32 : 58,266.30 = 28,735.20 : x
  2. Step 2: Convert to fraction form
    42,187.32/58,266.30 = 28,735.20/x
  3. Step 3: Cross multiply
    42,187.32x = 58,266.30 × 28,735.20
  4. Step 4: Simplify right side
    42,187.32x = 1,674,293,783.76
  5. Step 5: Solve for x
    x = 1,674,293,783.76/42,187.32
  6. Step 6: Final answer
    x = 39,687.13

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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.