Home / 28,184.12-42,276.18-7,124.22

Finding the Fourth Proportional to 28,184.12, 42,276.18 and 7,124.22

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Solution

The fourth proportional to 28,184.12, 42,276.18 and 7,124.22 is: 10,686.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,184.12 : 42,276.18 = 7,124.22 : x
  2. Step 2: Convert to fraction form
    28,184.12/42,276.18 = 7,124.22/x
  3. Step 3: Cross multiply
    28,184.12x = 42,276.18 × 7,124.22
  4. Step 4: Simplify right side
    28,184.12x = 301,184,807.08
  5. Step 5: Solve for x
    x = 301,184,807.08/28,184.12
  6. Step 6: Final answer
    x = 10,686.33

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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.