Home / 19,915.84-29,878.88-5,875.30

Finding the Fourth Proportional to 19,915.84, 29,878.88 and 5,875.30

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Solution

The fourth proportional to 19,915.84, 29,878.88 and 5,875.30 is: 8,814.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,915.84 : 29,878.88 = 5,875.30 : x
  2. Step 2: Convert to fraction form
    19,915.84/29,878.88 = 5,875.30/x
  3. Step 3: Cross multiply
    19,915.84x = 29,878.88 × 5,875.30
  4. Step 4: Simplify right side
    19,915.84x = 175,547,383.66
  5. Step 5: Solve for x
    x = 175,547,383.66/19,915.84
  6. Step 6: Final answer
    x = 8,814.46

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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.