Home / 39,430.06-59,154.50-13,135.02

Finding the Fourth Proportional to 39,430.06, 59,154.50 and 13,135.02

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Solution

The fourth proportional to 39,430.06, 59,154.50 and 13,135.02 is: 19,705.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,430.06 : 59,154.50 = 13,135.02 : x
  2. Step 2: Convert to fraction form
    39,430.06/59,154.50 = 13,135.02/x
  3. Step 3: Cross multiply
    39,430.06x = 59,154.50 × 13,135.02
  4. Step 4: Simplify right side
    39,430.06x = 776,995,540.59
  5. Step 5: Solve for x
    x = 776,995,540.59/39,430.06
  6. Step 6: Final answer
    x = 19,705.66

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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.