Home / 39,740.04-59,571.18-18,978.12

Finding the Fourth Proportional to 39,740.04, 59,571.18 and 18,978.12

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Solution

The fourth proportional to 39,740.04, 59,571.18 and 18,978.12 is: 28,448.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,740.04 : 59,571.18 = 18,978.12 : x
  2. Step 2: Convert to fraction form
    39,740.04/59,571.18 = 18,978.12/x
  3. Step 3: Cross multiply
    39,740.04x = 59,571.18 × 18,978.12
  4. Step 4: Simplify right side
    39,740.04x = 1,130,549,002.58
  5. Step 5: Solve for x
    x = 1,130,549,002.58/39,740.04
  6. Step 6: Final answer
    x = 28,448.61

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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.