Home / 25,666.56-35,386.92-21,050.40

Finding the Fourth Proportional to 25,666.56, 35,386.92 and 21,050.40

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Solution

The fourth proportional to 25,666.56, 35,386.92 and 21,050.40 is: 29,022.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,666.56 : 35,386.92 = 21,050.40 : x
  2. Step 2: Convert to fraction form
    25,666.56/35,386.92 = 21,050.40/x
  3. Step 3: Cross multiply
    25,666.56x = 35,386.92 × 21,050.40
  4. Step 4: Simplify right side
    25,666.56x = 744,908,820.77
  5. Step 5: Solve for x
    x = 744,908,820.77/25,666.56
  6. Step 6: Final answer
    x = 29,022.54

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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.