Home / 21,263.04-29,341.98-11,831.40

Finding the Fourth Proportional to 21,263.04, 29,341.98 and 11,831.40

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Solution

The fourth proportional to 21,263.04, 29,341.98 and 11,831.40 is: 16,326.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,263.04 : 29,341.98 = 11,831.40 : x
  2. Step 2: Convert to fraction form
    21,263.04/29,341.98 = 11,831.40/x
  3. Step 3: Cross multiply
    21,263.04x = 29,341.98 × 11,831.40
  4. Step 4: Simplify right side
    21,263.04x = 347,156,702.17
  5. Step 5: Solve for x
    x = 347,156,702.17/21,263.04
  6. Step 6: Final answer
    x = 16,326.77

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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.