Home / 31,478.32-43,440.24-18,050.08

Finding the Fourth Proportional to 31,478.32, 43,440.24 and 18,050.08

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Solution

The fourth proportional to 31,478.32, 43,440.24 and 18,050.08 is: 24,909.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,478.32 : 43,440.24 = 18,050.08 : x
  2. Step 2: Convert to fraction form
    31,478.32/43,440.24 = 18,050.08/x
  3. Step 3: Cross multiply
    31,478.32x = 43,440.24 × 18,050.08
  4. Step 4: Simplify right side
    31,478.32x = 784,099,807.22
  5. Step 5: Solve for x
    x = 784,099,807.22/31,478.32
  6. Step 6: Final answer
    x = 24,909.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.