Home / 28,885.56-39,870.38-16,949.40

Finding the Fourth Proportional to 28,885.56, 39,870.38 and 16,949.40

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Solution

The fourth proportional to 28,885.56, 39,870.38 and 16,949.40 is: 23,395.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,885.56 : 39,870.38 = 16,949.40 : x
  2. Step 2: Convert to fraction form
    28,885.56/39,870.38 = 16,949.40/x
  3. Step 3: Cross multiply
    28,885.56x = 39,870.38 × 16,949.40
  4. Step 4: Simplify right side
    28,885.56x = 675,779,018.77
  5. Step 5: Solve for x
    x = 675,779,018.77/28,885.56
  6. Step 6: Final answer
    x = 23,395.05

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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.