Home / 56,280.69-84,425.48-18,840.90

Finding the Fourth Proportional to 56,280.69, 84,425.48 and 18,840.90

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Solution

The fourth proportional to 56,280.69, 84,425.48 and 18,840.90 is: 28,262.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,280.69 : 84,425.48 = 18,840.90 : x
  2. Step 2: Convert to fraction form
    56,280.69/84,425.48 = 18,840.90/x
  3. Step 3: Cross multiply
    56,280.69x = 84,425.48 × 18,840.90
  4. Step 4: Simplify right side
    56,280.69x = 1,590,652,026.13
  5. Step 5: Solve for x
    x = 1,590,652,026.13/56,280.69
  6. Step 6: Final answer
    x = 28,262.84

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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.