Home / 19,438.10-29,151.76-8,342.32

Finding the Fourth Proportional to 19,438.10, 29,151.76 and 8,342.32

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Solution

The fourth proportional to 19,438.10, 29,151.76 and 8,342.32 is: 12,511.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,438.10 : 29,151.76 = 8,342.32 : x
  2. Step 2: Convert to fraction form
    19,438.10/29,151.76 = 8,342.32/x
  3. Step 3: Cross multiply
    19,438.10x = 29,151.76 × 8,342.32
  4. Step 4: Simplify right side
    19,438.10x = 243,193,326.07
  5. Step 5: Solve for x
    x = 243,193,326.07/19,438.10
  6. Step 6: Final answer
    x = 12,511.17

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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.