Home / 21,017.40-31,526.10-14,675.10

Finding the Fourth Proportional to 21,017.40, 31,526.10 and 14,675.10

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Solution

The fourth proportional to 21,017.40, 31,526.10 and 14,675.10 is: 22,012.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,017.40 : 31,526.10 = 14,675.10 : x
  2. Step 2: Convert to fraction form
    21,017.40/31,526.10 = 14,675.10/x
  3. Step 3: Cross multiply
    21,017.40x = 31,526.10 × 14,675.10
  4. Step 4: Simplify right side
    21,017.40x = 462,648,670.11
  5. Step 5: Solve for x
    x = 462,648,670.11/21,017.40
  6. Step 6: Final answer
    x = 22,012.65

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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.