Home / 42,845.23-64,270.91-13,259.26

Finding the Fourth Proportional to 42,845.23, 64,270.91 and 13,259.26

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Solution

The fourth proportional to 42,845.23, 64,270.91 and 13,259.26 is: 19,889.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,845.23 : 64,270.91 = 13,259.26 : x
  2. Step 2: Convert to fraction form
    42,845.23/64,270.91 = 13,259.26/x
  3. Step 3: Cross multiply
    42,845.23x = 64,270.91 × 13,259.26
  4. Step 4: Simplify right side
    42,845.23x = 852,184,706.13
  5. Step 5: Solve for x
    x = 852,184,706.13/42,845.23
  6. Step 6: Final answer
    x = 19,889.84

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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.