Home / 30,590.03-45,901.76-11,870.80

Finding the Fourth Proportional to 30,590.03, 45,901.76 and 11,870.80

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Solution

The fourth proportional to 30,590.03, 45,901.76 and 11,870.80 is: 17,812.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,590.03 : 45,901.76 = 11,870.80 : x
  2. Step 2: Convert to fraction form
    30,590.03/45,901.76 = 11,870.80/x
  3. Step 3: Cross multiply
    30,590.03x = 45,901.76 × 11,870.80
  4. Step 4: Simplify right side
    30,590.03x = 544,890,612.61
  5. Step 5: Solve for x
    x = 544,890,612.61/30,590.03
  6. Step 6: Final answer
    x = 17,812.69

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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.