Home / 30,751.60-42,441.28-17,325.51

Finding the Fourth Proportional to 30,751.60, 42,441.28 and 17,325.51

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Solution

The fourth proportional to 30,751.60, 42,441.28 and 17,325.51 is: 23,911.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,751.60 : 42,441.28 = 17,325.51 : x
  2. Step 2: Convert to fraction form
    30,751.60/42,441.28 = 17,325.51/x
  3. Step 3: Cross multiply
    30,751.60x = 42,441.28 × 17,325.51
  4. Step 4: Simplify right side
    30,751.60x = 735,316,777.74
  5. Step 5: Solve for x
    x = 735,316,777.74/30,751.60
  6. Step 6: Final answer
    x = 23,911.50

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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.