Home / 30,210.60-41,689.18-16,782.72

Finding the Fourth Proportional to 30,210.60, 41,689.18 and 16,782.72

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Solution

The fourth proportional to 30,210.60, 41,689.18 and 16,782.72 is: 23,159.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,210.60 : 41,689.18 = 16,782.72 : x
  2. Step 2: Convert to fraction form
    30,210.60/41,689.18 = 16,782.72/x
  3. Step 3: Cross multiply
    30,210.60x = 41,689.18 × 16,782.72
  4. Step 4: Simplify right side
    30,210.60x = 699,657,834.97
  5. Step 5: Solve for x
    x = 699,657,834.97/30,210.60
  6. Step 6: Final answer
    x = 23,159.35

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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.