Home / 21,526.66-29,705.42-12,576.70

Finding the Fourth Proportional to 21,526.66, 29,705.42 and 12,576.70

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Solution

The fourth proportional to 21,526.66, 29,705.42 and 12,576.70 is: 17,355.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,526.66 : 29,705.42 = 12,576.70 : x
  2. Step 2: Convert to fraction form
    21,526.66/29,705.42 = 12,576.70/x
  3. Step 3: Cross multiply
    21,526.66x = 29,705.42 × 12,576.70
  4. Step 4: Simplify right side
    21,526.66x = 373,596,155.71
  5. Step 5: Solve for x
    x = 373,596,155.71/21,526.66
  6. Step 6: Final answer
    x = 17,355.05

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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.