Home / 27,309.03-37,690.05-15,374.70

Finding the Fourth Proportional to 27,309.03, 37,690.05 and 15,374.70

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Solution

The fourth proportional to 27,309.03, 37,690.05 and 15,374.70 is: 21,219.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,309.03 : 37,690.05 = 15,374.70 : x
  2. Step 2: Convert to fraction form
    27,309.03/37,690.05 = 15,374.70/x
  3. Step 3: Cross multiply
    27,309.03x = 37,690.05 × 15,374.70
  4. Step 4: Simplify right side
    27,309.03x = 579,473,211.74
  5. Step 5: Solve for x
    x = 579,473,211.74/27,309.03
  6. Step 6: Final answer
    x = 21,219.11

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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.