Home / 38,988.56-53,830.04-30,020.24

Finding the Fourth Proportional to 38,988.56, 53,830.04 and 30,020.24

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Solution

The fourth proportional to 38,988.56, 53,830.04 and 30,020.24 is: 41,447.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,988.56 : 53,830.04 = 30,020.24 : x
  2. Step 2: Convert to fraction form
    38,988.56/53,830.04 = 30,020.24/x
  3. Step 3: Cross multiply
    38,988.56x = 53,830.04 × 30,020.24
  4. Step 4: Simplify right side
    38,988.56x = 1,615,990,720.01
  5. Step 5: Solve for x
    x = 1,615,990,720.01/38,988.56
  6. Step 6: Final answer
    x = 41,447.82

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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.