Home / 39,432.51-59,151.60-12,412.53

Finding the Fourth Proportional to 39,432.51, 59,151.60 and 12,412.53

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Solution

The fourth proportional to 39,432.51, 59,151.60 and 12,412.53 is: 18,619.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,432.51 : 59,151.60 = 12,412.53 : x
  2. Step 2: Convert to fraction form
    39,432.51/59,151.60 = 12,412.53/x
  3. Step 3: Cross multiply
    39,432.51x = 59,151.60 × 12,412.53
  4. Step 4: Simplify right side
    39,432.51x = 734,221,009.55
  5. Step 5: Solve for x
    x = 734,221,009.55/39,432.51
  6. Step 6: Final answer
    x = 18,619.69

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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.