Home / 30,458.61-42,032.57-17,880.93

Finding the Fourth Proportional to 30,458.61, 42,032.57 and 17,880.93

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Solution

The fourth proportional to 30,458.61, 42,032.57 and 17,880.93 is: 24,675.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,458.61 : 42,032.57 = 17,880.93 : x
  2. Step 2: Convert to fraction form
    30,458.61/42,032.57 = 17,880.93/x
  3. Step 3: Cross multiply
    30,458.61x = 42,032.57 × 17,880.93
  4. Step 4: Simplify right side
    30,458.61x = 751,581,352.49
  5. Step 5: Solve for x
    x = 751,581,352.49/30,458.61
  6. Step 6: Final answer
    x = 24,675.50

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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.