Home / 19,723.20-29,570.40-8,030.40

Finding the Fourth Proportional to 19,723.20, 29,570.40 and 8,030.40

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Solution

The fourth proportional to 19,723.20, 29,570.40 and 8,030.40 is: 12,039.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,723.20 : 29,570.40 = 8,030.40 : x
  2. Step 2: Convert to fraction form
    19,723.20/29,570.40 = 8,030.40/x
  3. Step 3: Cross multiply
    19,723.20x = 29,570.40 × 8,030.40
  4. Step 4: Simplify right side
    19,723.20x = 237,462,140.16
  5. Step 5: Solve for x
    x = 237,462,140.16/19,723.20
  6. Step 6: Final answer
    x = 12,039.74

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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.