Home / 19,770.95-27,284.36-10,818.45

Finding the Fourth Proportional to 19,770.95, 27,284.36 and 10,818.45

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Solution

The fourth proportional to 19,770.95, 27,284.36 and 10,818.45 is: 14,929.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,770.95 : 27,284.36 = 10,818.45 : x
  2. Step 2: Convert to fraction form
    19,770.95/27,284.36 = 10,818.45/x
  3. Step 3: Cross multiply
    19,770.95x = 27,284.36 × 10,818.45
  4. Step 4: Simplify right side
    19,770.95x = 295,174,430.35
  5. Step 5: Solve for x
    x = 295,174,430.35/19,770.95
  6. Step 6: Final answer
    x = 14,929.70

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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.