Home / 28,355.41-42,533.13-12,754.81

Finding the Fourth Proportional to 28,355.41, 42,533.13 and 12,754.81

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Solution

The fourth proportional to 28,355.41, 42,533.13 and 12,754.81 is: 19,132.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,355.41 : 42,533.13 = 12,754.81 : x
  2. Step 2: Convert to fraction form
    28,355.41/42,533.13 = 12,754.81/x
  3. Step 3: Cross multiply
    28,355.41x = 42,533.13 × 12,754.81
  4. Step 4: Simplify right side
    28,355.41x = 542,501,991.86
  5. Step 5: Solve for x
    x = 542,501,991.86/28,355.41
  6. Step 6: Final answer
    x = 19,132.22

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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.