Home / 39,000.60-58,539.30-19,301.40

Finding the Fourth Proportional to 39,000.60, 58,539.30 and 19,301.40

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Solution

The fourth proportional to 39,000.60, 58,539.30 and 19,301.40 is: 28,971.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,000.60 : 58,539.30 = 19,301.40 : x
  2. Step 2: Convert to fraction form
    39,000.60/58,539.30 = 19,301.40/x
  3. Step 3: Cross multiply
    39,000.60x = 58,539.30 × 19,301.40
  4. Step 4: Simplify right side
    39,000.60x = 1,129,890,445.02
  5. Step 5: Solve for x
    x = 1,129,890,445.02/39,000.60
  6. Step 6: Final answer
    x = 28,971.10

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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.