Home / 28,678.32-39,590.47-17,929.16

Finding the Fourth Proportional to 28,678.32, 39,590.47 and 17,929.16

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Solution

The fourth proportional to 28,678.32, 39,590.47 and 17,929.16 is: 24,751.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,678.32 : 39,590.47 = 17,929.16 : x
  2. Step 2: Convert to fraction form
    28,678.32/39,590.47 = 17,929.16/x
  3. Step 3: Cross multiply
    28,678.32x = 39,590.47 × 17,929.16
  4. Step 4: Simplify right side
    28,678.32x = 709,824,066.72
  5. Step 5: Solve for x
    x = 709,824,066.72/28,678.32
  6. Step 6: Final answer
    x = 24,751.24

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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.