Home / 28,471.23-42,715.98-13,681.22

Finding the Fourth Proportional to 28,471.23, 42,715.98 and 13,681.22

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Solution

The fourth proportional to 28,471.23, 42,715.98 and 13,681.22 is: 20,526.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,471.23 : 42,715.98 = 13,681.22 : x
  2. Step 2: Convert to fraction form
    28,471.23/42,715.98 = 13,681.22/x
  3. Step 3: Cross multiply
    28,471.23x = 42,715.98 × 13,681.22
  4. Step 4: Simplify right side
    28,471.23x = 584,406,506.32
  5. Step 5: Solve for x
    x = 584,406,506.32/28,471.23
  6. Step 6: Final answer
    x = 20,526.21

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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.