Home / 51,317.15-70,811.42-28,657.40

Finding the Fourth Proportional to 51,317.15, 70,811.42 and 28,657.40

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Solution

The fourth proportional to 51,317.15, 70,811.42 and 28,657.40 is: 39,543.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,317.15 : 70,811.42 = 28,657.40 : x
  2. Step 2: Convert to fraction form
    51,317.15/70,811.42 = 28,657.40/x
  3. Step 3: Cross multiply
    51,317.15x = 70,811.42 × 28,657.40
  4. Step 4: Simplify right side
    51,317.15x = 2,029,270,690.16
  5. Step 5: Solve for x
    x = 2,029,270,690.16/51,317.15
  6. Step 6: Final answer
    x = 39,543.72

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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.