Home / 46,990.38-70,468.01-18,900.95

Finding the Fourth Proportional to 46,990.38, 70,468.01 and 18,900.95

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Solution

The fourth proportional to 46,990.38, 70,468.01 and 18,900.95 is: 28,344.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,990.38 : 70,468.01 = 18,900.95 : x
  2. Step 2: Convert to fraction form
    46,990.38/70,468.01 = 18,900.95/x
  3. Step 3: Cross multiply
    46,990.38x = 70,468.01 × 18,900.95
  4. Step 4: Simplify right side
    46,990.38x = 1,331,911,957.64
  5. Step 5: Solve for x
    x = 1,331,911,957.64/46,990.38
  6. Step 6: Final answer
    x = 28,344.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.