Home / 22,779.70-34,157.40-9,617.20

Finding the Fourth Proportional to 22,779.70, 34,157.40 and 9,617.20

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Solution

The fourth proportional to 22,779.70, 34,157.40 and 9,617.20 is: 14,420.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,779.70 : 34,157.40 = 9,617.20 : x
  2. Step 2: Convert to fraction form
    22,779.70/34,157.40 = 9,617.20/x
  3. Step 3: Cross multiply
    22,779.70x = 34,157.40 × 9,617.20
  4. Step 4: Simplify right side
    22,779.70x = 328,498,547.28
  5. Step 5: Solve for x
    x = 328,498,547.28/22,779.70
  6. Step 6: Final answer
    x = 14,420.67

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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.