Home / 28,312.29-42,437.30-11,663.25

Finding the Fourth Proportional to 28,312.29, 42,437.30 and 11,663.25

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Solution

The fourth proportional to 28,312.29, 42,437.30 and 11,663.25 is: 17,482.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,312.29 : 42,437.30 = 11,663.25 : x
  2. Step 2: Convert to fraction form
    28,312.29/42,437.30 = 11,663.25/x
  3. Step 3: Cross multiply
    28,312.29x = 42,437.30 × 11,663.25
  4. Step 4: Simplify right side
    28,312.29x = 494,956,839.23
  5. Step 5: Solve for x
    x = 494,956,839.23/28,312.29
  6. Step 6: Final answer
    x = 17,482.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.