Home / 43,386.03-65,088.90-13,805.64

Finding the Fourth Proportional to 43,386.03, 65,088.90 and 13,805.64

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Solution

The fourth proportional to 43,386.03, 65,088.90 and 13,805.64 is: 20,711.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,386.03 : 65,088.90 = 13,805.64 : x
  2. Step 2: Convert to fraction form
    43,386.03/65,088.90 = 13,805.64/x
  3. Step 3: Cross multiply
    43,386.03x = 65,088.90 × 13,805.64
  4. Step 4: Simplify right side
    43,386.03x = 898,593,921.40
  5. Step 5: Solve for x
    x = 898,593,921.40/43,386.03
  6. Step 6: Final answer
    x = 20,711.60

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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.