Home / 29,130.08-43,695.15-12,479.32

Finding the Fourth Proportional to 29,130.08, 43,695.15 and 12,479.32

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Solution

The fourth proportional to 29,130.08, 43,695.15 and 12,479.32 is: 18,718.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,130.08 : 43,695.15 = 12,479.32 : x
  2. Step 2: Convert to fraction form
    29,130.08/43,695.15 = 12,479.32/x
  3. Step 3: Cross multiply
    29,130.08x = 43,695.15 × 12,479.32
  4. Step 4: Simplify right side
    29,130.08x = 545,285,521.33
  5. Step 5: Solve for x
    x = 545,285,521.33/29,130.08
  6. Step 6: Final answer
    x = 18,718.98

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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.