Home / 19,430.32-29,119.68-7,737.12

Finding the Fourth Proportional to 19,430.32, 29,119.68 and 7,737.12

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Solution

The fourth proportional to 19,430.32, 29,119.68 and 7,737.12 is: 11,595.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,430.32 : 29,119.68 = 7,737.12 : x
  2. Step 2: Convert to fraction form
    19,430.32/29,119.68 = 7,737.12/x
  3. Step 3: Cross multiply
    19,430.32x = 29,119.68 × 7,737.12
  4. Step 4: Simplify right side
    19,430.32x = 225,302,458.52
  5. Step 5: Solve for x
    x = 225,302,458.52/19,430.32
  6. Step 6: Final answer
    x = 11,595.41

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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.