Home / 51,430.86-70,974.23-28,769.76

Finding the Fourth Proportional to 51,430.86, 70,974.23 and 28,769.76

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Solution

The fourth proportional to 51,430.86, 70,974.23 and 28,769.76 is: 39,702.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,430.86 : 70,974.23 = 28,769.76 : x
  2. Step 2: Convert to fraction form
    51,430.86/70,974.23 = 28,769.76/x
  3. Step 3: Cross multiply
    51,430.86x = 70,974.23 × 28,769.76
  4. Step 4: Simplify right side
    51,430.86x = 2,041,911,419.44
  5. Step 5: Solve for x
    x = 2,041,911,419.44/51,430.86
  6. Step 6: Final answer
    x = 39,702.07

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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.