Home / 39,810.51-59,730.12-20,074.20

Finding the Fourth Proportional to 39,810.51, 59,730.12 and 20,074.20

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Solution

The fourth proportional to 39,810.51, 59,730.12 and 20,074.20 is: 30,118.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,810.51 : 59,730.12 = 20,074.20 : x
  2. Step 2: Convert to fraction form
    39,810.51/59,730.12 = 20,074.20/x
  3. Step 3: Cross multiply
    39,810.51x = 59,730.12 × 20,074.20
  4. Step 4: Simplify right side
    39,810.51x = 1,199,034,374.90
  5. Step 5: Solve for x
    x = 1,199,034,374.90/39,810.51
  6. Step 6: Final answer
    x = 30,118.54

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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.