Home / 43,615.80-65,423.70-28,841.40

Finding the Fourth Proportional to 43,615.80, 65,423.70 and 28,841.40

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Solution

The fourth proportional to 43,615.80, 65,423.70 and 28,841.40 is: 43,262.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,615.80 : 65,423.70 = 28,841.40 : x
  2. Step 2: Convert to fraction form
    43,615.80/65,423.70 = 28,841.40/x
  3. Step 3: Cross multiply
    43,615.80x = 65,423.70 × 28,841.40
  4. Step 4: Simplify right side
    43,615.80x = 1,886,911,101.18
  5. Step 5: Solve for x
    x = 1,886,911,101.18/43,615.80
  6. Step 6: Final answer
    x = 43,262.10

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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.