Home / 39,598.28-59,385-12,938.19

Finding the Fourth Proportional to 39,598.28, 59,385 and 12,938.19

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Solution

The fourth proportional to 39,598.28, 59,385 and 12,938.19 is: 19,403.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,598.28 : 59,385 = 12,938.19 : x
  2. Step 2: Convert to fraction form
    39,598.28/59,385 = 12,938.19/x
  3. Step 3: Cross multiply
    39,598.28x = 59,385 × 12,938.19
  4. Step 4: Simplify right side
    39,598.28x = 768,334,413.15
  5. Step 5: Solve for x
    x = 768,334,413.15/39,598.28
  6. Step 6: Final answer
    x = 19,403.23

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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.