Home / 28,047.02-42,038.21-11,388.75

Finding the Fourth Proportional to 28,047.02, 42,038.21 and 11,388.75

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Solution

The fourth proportional to 28,047.02, 42,038.21 and 11,388.75 is: 17,070.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,047.02 : 42,038.21 = 11,388.75 : x
  2. Step 2: Convert to fraction form
    28,047.02/42,038.21 = 11,388.75/x
  3. Step 3: Cross multiply
    28,047.02x = 42,038.21 × 11,388.75
  4. Step 4: Simplify right side
    28,047.02x = 478,762,607.19
  5. Step 5: Solve for x
    x = 478,762,607.19/28,047.02
  6. Step 6: Final answer
    x = 17,070.00

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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.