Home / 30,860.80-42,587.60-17,432.02

Finding the Fourth Proportional to 30,860.80, 42,587.60 and 17,432.02

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Solution

The fourth proportional to 30,860.80, 42,587.60 and 17,432.02 is: 24,056.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,860.80 : 42,587.60 = 17,432.02 : x
  2. Step 2: Convert to fraction form
    30,860.80/42,587.60 = 17,432.02/x
  3. Step 3: Cross multiply
    30,860.80x = 42,587.60 × 17,432.02
  4. Step 4: Simplify right side
    30,860.80x = 742,387,894.95
  5. Step 5: Solve for x
    x = 742,387,894.95/30,860.80
  6. Step 6: Final answer
    x = 24,056.02

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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.