Home / 30,957.88-42,715.20-17,528.08

Finding the Fourth Proportional to 30,957.88, 42,715.20 and 17,528.08

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Solution

The fourth proportional to 30,957.88, 42,715.20 and 17,528.08 is: 24,184.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,957.88 : 42,715.20 = 17,528.08 : x
  2. Step 2: Convert to fraction form
    30,957.88/42,715.20 = 17,528.08/x
  3. Step 3: Cross multiply
    30,957.88x = 42,715.20 × 17,528.08
  4. Step 4: Simplify right side
    30,957.88x = 748,715,442.82
  5. Step 5: Solve for x
    x = 748,715,442.82/30,957.88
  6. Step 6: Final answer
    x = 24,184.97

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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.