Home / 42,875.76-64,313.63-17,902.21

Finding the Fourth Proportional to 42,875.76, 64,313.63 and 17,902.21

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Solution

The fourth proportional to 42,875.76, 64,313.63 and 17,902.21 is: 26,853.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,875.76 : 64,313.63 = 17,902.21 : x
  2. Step 2: Convert to fraction form
    42,875.76/64,313.63 = 17,902.21/x
  3. Step 3: Cross multiply
    42,875.76x = 64,313.63 × 17,902.21
  4. Step 4: Simplify right side
    42,875.76x = 1,151,356,110.12
  5. Step 5: Solve for x
    x = 1,151,356,110.12/42,875.76
  6. Step 6: Final answer
    x = 26,853.31

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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.