Home / 35,545.40-53,318.10-20,746.70

Finding the Fourth Proportional to 35,545.40, 53,318.10 and 20,746.70

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Solution

The fourth proportional to 35,545.40, 53,318.10 and 20,746.70 is: 31,120.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,545.40 : 53,318.10 = 20,746.70 : x
  2. Step 2: Convert to fraction form
    35,545.40/53,318.10 = 20,746.70/x
  3. Step 3: Cross multiply
    35,545.40x = 53,318.10 × 20,746.70
  4. Step 4: Simplify right side
    35,545.40x = 1,106,174,625.27
  5. Step 5: Solve for x
    x = 1,106,174,625.27/35,545.40
  6. Step 6: Final answer
    x = 31,120.05

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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.