Home / 25,287.84-37,916.40-12,969.12

Finding the Fourth Proportional to 25,287.84, 37,916.40 and 12,969.12

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Solution

The fourth proportional to 25,287.84, 37,916.40 and 12,969.12 is: 19,445.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,287.84 : 37,916.40 = 12,969.12 : x
  2. Step 2: Convert to fraction form
    25,287.84/37,916.40 = 12,969.12/x
  3. Step 3: Cross multiply
    25,287.84x = 37,916.40 × 12,969.12
  4. Step 4: Simplify right side
    25,287.84x = 491,742,341.57
  5. Step 5: Solve for x
    x = 491,742,341.57/25,287.84
  6. Step 6: Final answer
    x = 19,445.80

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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.