Home / 19,420.26-26,802.16-10,807.30

Finding the Fourth Proportional to 19,420.26, 26,802.16 and 10,807.30

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Solution

The fourth proportional to 19,420.26, 26,802.16 and 10,807.30 is: 14,915.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,420.26 : 26,802.16 = 10,807.30 : x
  2. Step 2: Convert to fraction form
    19,420.26/26,802.16 = 10,807.30/x
  3. Step 3: Cross multiply
    19,420.26x = 26,802.16 × 10,807.30
  4. Step 4: Simplify right side
    19,420.26x = 289,658,983.77
  5. Step 5: Solve for x
    x = 289,658,983.77/19,420.26
  6. Step 6: Final answer
    x = 14,915.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.