Home / 30,090.08-45,143.04-11,370.40

Finding the Fourth Proportional to 30,090.08, 45,143.04 and 11,370.40

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Solution

The fourth proportional to 30,090.08, 45,143.04 and 11,370.40 is: 17,058.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,090.08 : 45,143.04 = 11,370.40 : x
  2. Step 2: Convert to fraction form
    30,090.08/45,143.04 = 11,370.40/x
  3. Step 3: Cross multiply
    30,090.08x = 45,143.04 × 11,370.40
  4. Step 4: Simplify right side
    30,090.08x = 513,294,422.02
  5. Step 5: Solve for x
    x = 513,294,422.02/30,090.08
  6. Step 6: Final answer
    x = 17,058.59

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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.