Home / 30,590.19-45,854.27-20,730.45

Finding the Fourth Proportional to 30,590.19, 45,854.27 and 20,730.45

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Solution

The fourth proportional to 30,590.19, 45,854.27 and 20,730.45 is: 31,074.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,590.19 : 45,854.27 = 20,730.45 : x
  2. Step 2: Convert to fraction form
    30,590.19/45,854.27 = 20,730.45/x
  3. Step 3: Cross multiply
    30,590.19x = 45,854.27 × 20,730.45
  4. Step 4: Simplify right side
    30,590.19x = 950,579,547.87
  5. Step 5: Solve for x
    x = 950,579,547.87/30,590.19
  6. Step 6: Final answer
    x = 31,074.65

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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.