Home / 42,783.90-64,177.67-13,201.08

Finding the Fourth Proportional to 42,783.90, 64,177.67 and 13,201.08

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Solution

The fourth proportional to 42,783.90, 64,177.67 and 13,201.08 is: 19,802.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,783.90 : 64,177.67 = 13,201.08 : x
  2. Step 2: Convert to fraction form
    42,783.90/64,177.67 = 13,201.08/x
  3. Step 3: Cross multiply
    42,783.90x = 64,177.67 × 13,201.08
  4. Step 4: Simplify right side
    42,783.90x = 847,214,168.99
  5. Step 5: Solve for x
    x = 847,214,168.99/42,783.90
  6. Step 6: Final answer
    x = 19,802.17

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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.