Home / 38,729.58-58,088.88-12,430.86

Finding the Fourth Proportional to 38,729.58, 58,088.88 and 12,430.86

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Solution

The fourth proportional to 38,729.58, 58,088.88 and 12,430.86 is: 18,644.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,729.58 : 58,088.88 = 12,430.86 : x
  2. Step 2: Convert to fraction form
    38,729.58/58,088.88 = 12,430.86/x
  3. Step 3: Cross multiply
    38,729.58x = 58,088.88 × 12,430.86
  4. Step 4: Simplify right side
    38,729.58x = 722,094,734.84
  5. Step 5: Solve for x
    x = 722,094,734.84/38,729.58
  6. Step 6: Final answer
    x = 18,644.53

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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.