Home / 30,528.60-42,130.14-17,100.84

Finding the Fourth Proportional to 30,528.60, 42,130.14 and 17,100.84

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Solution

The fourth proportional to 30,528.60, 42,130.14 and 17,100.84 is: 23,599.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,528.60 : 42,130.14 = 17,100.84 : x
  2. Step 2: Convert to fraction form
    30,528.60/42,130.14 = 17,100.84/x
  3. Step 3: Cross multiply
    30,528.60x = 42,130.14 × 17,100.84
  4. Step 4: Simplify right side
    30,528.60x = 720,460,783.32
  5. Step 5: Solve for x
    x = 720,460,783.32/30,528.60
  6. Step 6: Final answer
    x = 23,599.54

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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.