Home / 28,258.02-42,374.21-10,715.40

Finding the Fourth Proportional to 28,258.02, 42,374.21 and 10,715.40

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Solution

The fourth proportional to 28,258.02, 42,374.21 and 10,715.40 is: 16,068.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,258.02 : 42,374.21 = 10,715.40 : x
  2. Step 2: Convert to fraction form
    28,258.02/42,374.21 = 10,715.40/x
  3. Step 3: Cross multiply
    28,258.02x = 42,374.21 × 10,715.40
  4. Step 4: Simplify right side
    28,258.02x = 454,056,556.26
  5. Step 5: Solve for x
    x = 454,056,556.26/28,258.02
  6. Step 6: Final answer
    x = 16,068.24

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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.