Home / 42,761.09-59,018.40-28,199.63

Finding the Fourth Proportional to 42,761.09, 59,018.40 and 28,199.63

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Solution

The fourth proportional to 42,761.09, 59,018.40 and 28,199.63 is: 38,920.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,761.09 : 59,018.40 = 28,199.63 : x
  2. Step 2: Convert to fraction form
    42,761.09/59,018.40 = 28,199.63/x
  3. Step 3: Cross multiply
    42,761.09x = 59,018.40 × 28,199.63
  4. Step 4: Simplify right side
    42,761.09x = 1,664,296,748.10
  5. Step 5: Solve for x
    x = 1,664,296,748.10/42,761.09
  6. Step 6: Final answer
    x = 38,920.83

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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.