Home / 42,615.20-58,822.80-28,471.20

Finding the Fourth Proportional to 42,615.20, 58,822.80 and 28,471.20

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Solution

The fourth proportional to 42,615.20, 58,822.80 and 28,471.20 is: 39,299.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,615.20 : 58,822.80 = 28,471.20 : x
  2. Step 2: Convert to fraction form
    42,615.20/58,822.80 = 28,471.20/x
  3. Step 3: Cross multiply
    42,615.20x = 58,822.80 × 28,471.20
  4. Step 4: Simplify right side
    42,615.20x = 1,674,755,703.36
  5. Step 5: Solve for x
    x = 1,674,755,703.36/42,615.20
  6. Step 6: Final answer
    x = 39,299.49

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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.