Home / 35,247.02-48,639.69-20,915.35

Finding the Fourth Proportional to 35,247.02, 48,639.69 and 20,915.35

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Solution

The fourth proportional to 35,247.02, 48,639.69 and 20,915.35 is: 28,862.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,247.02 : 48,639.69 = 20,915.35 : x
  2. Step 2: Convert to fraction form
    35,247.02/48,639.69 = 20,915.35/x
  3. Step 3: Cross multiply
    35,247.02x = 48,639.69 × 20,915.35
  4. Step 4: Simplify right side
    35,247.02x = 1,017,316,018.64
  5. Step 5: Solve for x
    x = 1,017,316,018.64/35,247.02
  6. Step 6: Final answer
    x = 28,862.47

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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.