Home / 21,000.03-31,501.26-5,417.25

Finding the Fourth Proportional to 21,000.03, 31,501.26 and 5,417.25

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Solution

The fourth proportional to 21,000.03, 31,501.26 and 5,417.25 is: 8,126.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,000.03 : 31,501.26 = 5,417.25 : x
  2. Step 2: Convert to fraction form
    21,000.03/31,501.26 = 5,417.25/x
  3. Step 3: Cross multiply
    21,000.03x = 31,501.26 × 5,417.25
  4. Step 4: Simplify right side
    21,000.03x = 170,650,200.74
  5. Step 5: Solve for x
    x = 170,650,200.74/21,000.03
  6. Step 6: Final answer
    x = 8,126.19

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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.