Home / 30,737.40-42,418.08-18,798.24

Finding the Fourth Proportional to 30,737.40, 42,418.08 and 18,798.24

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Solution

The fourth proportional to 30,737.40, 42,418.08 and 18,798.24 is: 25,941.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,737.40 : 42,418.08 = 18,798.24 : x
  2. Step 2: Convert to fraction form
    30,737.40/42,418.08 = 18,798.24/x
  3. Step 3: Cross multiply
    30,737.40x = 42,418.08 × 18,798.24
  4. Step 4: Simplify right side
    30,737.40x = 797,385,248.18
  5. Step 5: Solve for x
    x = 797,385,248.18/30,737.40
  6. Step 6: Final answer
    x = 25,941.86

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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.