Home / 30,790.27-42,490.61-16,643.13

Finding the Fourth Proportional to 30,790.27, 42,490.61 and 16,643.13

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Solution

The fourth proportional to 30,790.27, 42,490.61 and 16,643.13 is: 22,967.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,790.27 : 42,490.61 = 16,643.13 : x
  2. Step 2: Convert to fraction form
    30,790.27/42,490.61 = 16,643.13/x
  3. Step 3: Cross multiply
    30,790.27x = 42,490.61 × 16,643.13
  4. Step 4: Simplify right side
    30,790.27x = 707,176,746.01
  5. Step 5: Solve for x
    x = 707,176,746.01/30,790.27
  6. Step 6: Final answer
    x = 22,967.54

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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.