Home / 42,277.60-63,416.40-12,695.68

Finding the Fourth Proportional to 42,277.60, 63,416.40 and 12,695.68

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Solution

The fourth proportional to 42,277.60, 63,416.40 and 12,695.68 is: 19,043.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,277.60 : 63,416.40 = 12,695.68 : x
  2. Step 2: Convert to fraction form
    42,277.60/63,416.40 = 12,695.68/x
  3. Step 3: Cross multiply
    42,277.60x = 63,416.40 × 12,695.68
  4. Step 4: Simplify right side
    42,277.60x = 805,114,321.15
  5. Step 5: Solve for x
    x = 805,114,321.15/42,277.60
  6. Step 6: Final answer
    x = 19,043.52

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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.