Home / 53,277.18-79,915.80-13,830.98

Finding the Fourth Proportional to 53,277.18, 79,915.80 and 13,830.98

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Solution

The fourth proportional to 53,277.18, 79,915.80 and 13,830.98 is: 20,746.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,277.18 : 79,915.80 = 13,830.98 : x
  2. Step 2: Convert to fraction form
    53,277.18/79,915.80 = 13,830.98/x
  3. Step 3: Cross multiply
    53,277.18x = 79,915.80 × 13,830.98
  4. Step 4: Simplify right side
    53,277.18x = 1,105,313,831.48
  5. Step 5: Solve for x
    x = 1,105,313,831.48/53,277.18
  6. Step 6: Final answer
    x = 20,746.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.