Home / 34,988.36-52,490.80-13,929.60

Finding the Fourth Proportional to 34,988.36, 52,490.80 and 13,929.60

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Solution

The fourth proportional to 34,988.36, 52,490.80 and 13,929.60 is: 20,897.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,988.36 : 52,490.80 = 13,929.60 : x
  2. Step 2: Convert to fraction form
    34,988.36/52,490.80 = 13,929.60/x
  3. Step 3: Cross multiply
    34,988.36x = 52,490.80 × 13,929.60
  4. Step 4: Simplify right side
    34,988.36x = 731,176,061.93
  5. Step 5: Solve for x
    x = 731,176,061.93/34,988.36
  6. Step 6: Final answer
    x = 20,897.70

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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.