Home / 28,312.24-42,468.36-12,711.64

Finding the Fourth Proportional to 28,312.24, 42,468.36 and 12,711.64

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Solution

The fourth proportional to 28,312.24, 42,468.36 and 12,711.64 is: 19,067.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,312.24 : 42,468.36 = 12,711.64 : x
  2. Step 2: Convert to fraction form
    28,312.24/42,468.36 = 12,711.64/x
  3. Step 3: Cross multiply
    28,312.24x = 42,468.36 × 12,711.64
  4. Step 4: Simplify right side
    28,312.24x = 539,842,503.71
  5. Step 5: Solve for x
    x = 539,842,503.71/28,312.24
  6. Step 6: Final answer
    x = 19,067.46

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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.