Home / 30,000.60-41,386.14-19,399.32

Finding the Fourth Proportional to 30,000.60, 41,386.14 and 19,399.32

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Solution

The fourth proportional to 30,000.60, 41,386.14 and 19,399.32 is: 26,761.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,000.60 : 41,386.14 = 19,399.32 : x
  2. Step 2: Convert to fraction form
    30,000.60/41,386.14 = 19,399.32/x
  3. Step 3: Cross multiply
    30,000.60x = 41,386.14 × 19,399.32
  4. Step 4: Simplify right side
    30,000.60x = 802,862,973.42
  5. Step 5: Solve for x
    x = 802,862,973.42/30,000.60
  6. Step 6: Final answer
    x = 26,761.56

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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.