Home / 19,364.08-26,738.08-15,779.52

Finding the Fourth Proportional to 19,364.08, 26,738.08 and 15,779.52

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Solution

The fourth proportional to 19,364.08, 26,738.08 and 15,779.52 is: 21,788.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,364.08 : 26,738.08 = 15,779.52 : x
  2. Step 2: Convert to fraction form
    19,364.08/26,738.08 = 15,779.52/x
  3. Step 3: Cross multiply
    19,364.08x = 26,738.08 × 15,779.52
  4. Step 4: Simplify right side
    19,364.08x = 421,914,068.12
  5. Step 5: Solve for x
    x = 421,914,068.12/19,364.08
  6. Step 6: Final answer
    x = 21,788.49

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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.