Home / 38,707.53-58,069.46-12,430.72

Finding the Fourth Proportional to 38,707.53, 58,069.46 and 12,430.72

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Solution

The fourth proportional to 38,707.53, 58,069.46 and 12,430.72 is: 18,648.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,707.53 : 58,069.46 = 12,430.72 : x
  2. Step 2: Convert to fraction form
    38,707.53/58,069.46 = 12,430.72/x
  3. Step 3: Cross multiply
    38,707.53x = 58,069.46 × 12,430.72
  4. Step 4: Simplify right side
    38,707.53x = 721,845,197.81
  5. Step 5: Solve for x
    x = 721,845,197.81/38,707.53
  6. Step 6: Final answer
    x = 18,648.70

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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.