Home / 30,287.13-45,423.63-11,560.29

Finding the Fourth Proportional to 30,287.13, 45,423.63 and 11,560.29

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Solution

The fourth proportional to 30,287.13, 45,423.63 and 11,560.29 is: 17,337.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,287.13 : 45,423.63 = 11,560.29 : x
  2. Step 2: Convert to fraction form
    30,287.13/45,423.63 = 11,560.29/x
  3. Step 3: Cross multiply
    30,287.13x = 45,423.63 × 11,560.29
  4. Step 4: Simplify right side
    30,287.13x = 525,110,335.65
  5. Step 5: Solve for x
    x = 525,110,335.65/30,287.13
  6. Step 6: Final answer
    x = 17,337.74

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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.