Home / 19,312.96-26,651.76-10,929.28

Finding the Fourth Proportional to 19,312.96, 26,651.76 and 10,929.28

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Solution

The fourth proportional to 19,312.96, 26,651.76 and 10,929.28 is: 15,082.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,312.96 : 26,651.76 = 10,929.28 : x
  2. Step 2: Convert to fraction form
    19,312.96/26,651.76 = 10,929.28/x
  3. Step 3: Cross multiply
    19,312.96x = 26,651.76 × 10,929.28
  4. Step 4: Simplify right side
    19,312.96x = 291,284,547.53
  5. Step 5: Solve for x
    x = 291,284,547.53/19,312.96
  6. Step 6: Final answer
    x = 15,082.34

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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.