Home / 30,529.20-42,130.05-17,100.59

Finding the Fourth Proportional to 30,529.20, 42,130.05 and 17,100.59

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Solution

The fourth proportional to 30,529.20, 42,130.05 and 17,100.59 is: 23,598.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,529.20 : 42,130.05 = 17,100.59 : x
  2. Step 2: Convert to fraction form
    30,529.20/42,130.05 = 17,100.59/x
  3. Step 3: Cross multiply
    30,529.20x = 42,130.05 × 17,100.59
  4. Step 4: Simplify right side
    30,529.20x = 720,448,501.08
  5. Step 5: Solve for x
    x = 720,448,501.08/30,529.20
  6. Step 6: Final answer
    x = 23,598.67

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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.