Home / 28,486.90-39,303.21-16,547.95

Finding the Fourth Proportional to 28,486.90, 39,303.21 and 16,547.95

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Solution

The fourth proportional to 28,486.90, 39,303.21 and 16,547.95 is: 22,831.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,486.90 : 39,303.21 = 16,547.95 : x
  2. Step 2: Convert to fraction form
    28,486.90/39,303.21 = 16,547.95/x
  3. Step 3: Cross multiply
    28,486.90x = 39,303.21 × 16,547.95
  4. Step 4: Simplify right side
    28,486.90x = 650,387,553.92
  5. Step 5: Solve for x
    x = 650,387,553.92/28,486.90
  6. Step 6: Final answer
    x = 22,831.11

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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.