Home / 30,909.68-42,655.07-17,483.56

Finding the Fourth Proportional to 30,909.68, 42,655.07 and 17,483.56

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Solution

The fourth proportional to 30,909.68, 42,655.07 and 17,483.56 is: 24,127.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,909.68 : 42,655.07 = 17,483.56 : x
  2. Step 2: Convert to fraction form
    30,909.68/42,655.07 = 17,483.56/x
  3. Step 3: Cross multiply
    30,909.68x = 42,655.07 × 17,483.56
  4. Step 4: Simplify right side
    30,909.68x = 745,762,412.72
  5. Step 5: Solve for x
    x = 745,762,412.72/30,909.68
  6. Step 6: Final answer
    x = 24,127.15

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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.