Home / 31,011.80-42,798.90-17,585.50

Finding the Fourth Proportional to 31,011.80, 42,798.90 and 17,585.50

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Solution

The fourth proportional to 31,011.80, 42,798.90 and 17,585.50 is: 24,269.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,011.80 : 42,798.90 = 17,585.50 : x
  2. Step 2: Convert to fraction form
    31,011.80/42,798.90 = 17,585.50/x
  3. Step 3: Cross multiply
    31,011.80x = 42,798.90 × 17,585.50
  4. Step 4: Simplify right side
    31,011.80x = 752,640,055.95
  5. Step 5: Solve for x
    x = 752,640,055.95/31,011.80
  6. Step 6: Final answer
    x = 24,269.47

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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.