Home / 42,023.40-62,948.70-28,890.60

Finding the Fourth Proportional to 42,023.40, 62,948.70 and 28,890.60

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Solution

The fourth proportional to 42,023.40, 62,948.70 and 28,890.60 is: 43,276.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,023.40 : 62,948.70 = 28,890.60 : x
  2. Step 2: Convert to fraction form
    42,023.40/62,948.70 = 28,890.60/x
  3. Step 3: Cross multiply
    42,023.40x = 62,948.70 × 28,890.60
  4. Step 4: Simplify right side
    42,023.40x = 1,818,625,712.22
  5. Step 5: Solve for x
    x = 1,818,625,712.22/42,023.40
  6. Step 6: Final answer
    x = 43,276.50

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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.