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Finding the Fourth Proportional to 35,155.58, 52,740.08 and 12,970.68

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Solution

The fourth proportional to 35,155.58, 52,740.08 and 12,970.68 is: 19,458.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,155.58 : 52,740.08 = 12,970.68 : x
  2. Step 2: Convert to fraction form
    35,155.58/52,740.08 = 12,970.68/x
  3. Step 3: Cross multiply
    35,155.58x = 52,740.08 × 12,970.68
  4. Step 4: Simplify right side
    35,155.58x = 684,074,636.00
  5. Step 5: Solve for x
    x = 684,074,636.00/35,155.58
  6. Step 6: Final answer
    x = 19,458.50

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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.