Home / 30,590.43-45,854.65-20,730.70

Finding the Fourth Proportional to 30,590.43, 45,854.65 and 20,730.70

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Solution

The fourth proportional to 30,590.43, 45,854.65 and 20,730.70 is: 31,075.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,590.43 : 45,854.65 = 20,730.70 : x
  2. Step 2: Convert to fraction form
    30,590.43/45,854.65 = 20,730.70/x
  3. Step 3: Cross multiply
    30,590.43x = 45,854.65 × 20,730.70
  4. Step 4: Simplify right side
    30,590.43x = 950,598,992.76
  5. Step 5: Solve for x
    x = 950,598,992.76/30,590.43
  6. Step 6: Final answer
    x = 31,075.05

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1.5x scale

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.