Home / 58,018.98-87,003.86-20,588.47

Finding the Fourth Proportional to 58,018.98, 87,003.86 and 20,588.47

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Solution

The fourth proportional to 58,018.98, 87,003.86 and 20,588.47 is: 30,873.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,018.98 : 87,003.86 = 20,588.47 : x
  2. Step 2: Convert to fraction form
    58,018.98/87,003.86 = 20,588.47/x
  3. Step 3: Cross multiply
    58,018.98x = 87,003.86 × 20,588.47
  4. Step 4: Simplify right side
    58,018.98x = 1,791,276,361.49
  5. Step 5: Solve for x
    x = 1,791,276,361.49/58,018.98
  6. Step 6: Final answer
    x = 30,873.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.