Home / 42,630.59-58,786.65-28,285.40

Finding the Fourth Proportional to 42,630.59, 58,786.65 and 28,285.40

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Solution

The fourth proportional to 42,630.59, 58,786.65 and 28,285.40 is: 39,004.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,630.59 : 58,786.65 = 28,285.40 : x
  2. Step 2: Convert to fraction form
    42,630.59/58,786.65 = 28,285.40/x
  3. Step 3: Cross multiply
    42,630.59x = 58,786.65 × 28,285.40
  4. Step 4: Simplify right side
    42,630.59x = 1,662,804,056.88
  5. Step 5: Solve for x
    x = 1,662,804,056.88/42,630.59
  6. Step 6: Final answer
    x = 39,004.95

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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.