Home / 30,888.28-42,628-17,459.63

Finding the Fourth Proportional to 30,888.28, 42,628 and 17,459.63

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Solution

The fourth proportional to 30,888.28, 42,628 and 17,459.63 is: 24,095.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,888.28 : 42,628 = 17,459.63 : x
  2. Step 2: Convert to fraction form
    30,888.28/42,628 = 17,459.63/x
  3. Step 3: Cross multiply
    30,888.28x = 42,628 × 17,459.63
  4. Step 4: Simplify right side
    30,888.28x = 744,269,107.64
  5. Step 5: Solve for x
    x = 744,269,107.64/30,888.28
  6. Step 6: Final answer
    x = 24,095.52

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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.