Home / 39,777.60-59,626.98-18,679.87

Finding the Fourth Proportional to 39,777.60, 59,626.98 and 18,679.87

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Solution

The fourth proportional to 39,777.60, 59,626.98 and 18,679.87 is: 28,001.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,777.60 : 59,626.98 = 18,679.87 : x
  2. Step 2: Convert to fraction form
    39,777.60/59,626.98 = 18,679.87/x
  3. Step 3: Cross multiply
    39,777.60x = 59,626.98 × 18,679.87
  4. Step 4: Simplify right side
    39,777.60x = 1,113,824,141.49
  5. Step 5: Solve for x
    x = 1,113,824,141.49/39,777.60
  6. Step 6: Final answer
    x = 28,001.29

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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.