Home / 21,258.18-31,887-9,563.13

Finding the Fourth Proportional to 21,258.18, 31,887 and 9,563.13

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Solution

The fourth proportional to 21,258.18, 31,887 and 9,563.13 is: 14,344.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,258.18 : 31,887 = 9,563.13 : x
  2. Step 2: Convert to fraction form
    21,258.18/31,887 = 9,563.13/x
  3. Step 3: Cross multiply
    21,258.18x = 31,887 × 9,563.13
  4. Step 4: Simplify right side
    21,258.18x = 304,939,526.31
  5. Step 5: Solve for x
    x = 304,939,526.31/21,258.18
  6. Step 6: Final answer
    x = 14,344.57

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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.