Home / 35,915.19-53,870.35-13,730.80

Finding the Fourth Proportional to 35,915.19, 53,870.35 and 13,730.80

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Solution

The fourth proportional to 35,915.19, 53,870.35 and 13,730.80 is: 20,595.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,915.19 : 53,870.35 = 13,730.80 : x
  2. Step 2: Convert to fraction form
    35,915.19/53,870.35 = 13,730.80/x
  3. Step 3: Cross multiply
    35,915.19x = 53,870.35 × 13,730.80
  4. Step 4: Simplify right side
    35,915.19x = 739,683,001.78
  5. Step 5: Solve for x
    x = 739,683,001.78/35,915.19
  6. Step 6: Final answer
    x = 20,595.27

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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.