Home / 39,709.04-59,557.08-13,413.20

Finding the Fourth Proportional to 39,709.04, 59,557.08 and 13,413.20

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Solution

The fourth proportional to 39,709.04, 59,557.08 and 13,413.20 is: 20,117.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,709.04 : 59,557.08 = 13,413.20 : x
  2. Step 2: Convert to fraction form
    39,709.04/59,557.08 = 13,413.20/x
  3. Step 3: Cross multiply
    39,709.04x = 59,557.08 × 13,413.20
  4. Step 4: Simplify right side
    39,709.04x = 798,851,025.46
  5. Step 5: Solve for x
    x = 798,851,025.46/39,709.04
  6. Step 6: Final answer
    x = 20,117.61

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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.