Home / 30,167.60-45,265.08-12,641.36

Finding the Fourth Proportional to 30,167.60, 45,265.08 and 12,641.36

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Solution

The fourth proportional to 30,167.60, 45,265.08 and 12,641.36 is: 18,967.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,167.60 : 45,265.08 = 12,641.36 : x
  2. Step 2: Convert to fraction form
    30,167.60/45,265.08 = 12,641.36/x
  3. Step 3: Cross multiply
    30,167.60x = 45,265.08 × 12,641.36
  4. Step 4: Simplify right side
    30,167.60x = 572,212,171.71
  5. Step 5: Solve for x
    x = 572,212,171.71/30,167.60
  6. Step 6: Final answer
    x = 18,967.77

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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.