Home / 30,023.01-45,035.31-13,147.34

Finding the Fourth Proportional to 30,023.01, 45,035.31 and 13,147.34

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Solution

The fourth proportional to 30,023.01, 45,035.31 and 13,147.34 is: 19,721.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,023.01 : 45,035.31 = 13,147.34 : x
  2. Step 2: Convert to fraction form
    30,023.01/45,035.31 = 13,147.34/x
  3. Step 3: Cross multiply
    30,023.01x = 45,035.31 × 13,147.34
  4. Step 4: Simplify right side
    30,023.01x = 592,094,615.12
  5. Step 5: Solve for x
    x = 592,094,615.12/30,023.01
  6. Step 6: Final answer
    x = 19,721.36

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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.