Home / 38,058.16-57,090.40-9,978.16

Finding the Fourth Proportional to 38,058.16, 57,090.40 and 9,978.16

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Solution

The fourth proportional to 38,058.16, 57,090.40 and 9,978.16 is: 14,968.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,058.16 : 57,090.40 = 9,978.16 : x
  2. Step 2: Convert to fraction form
    38,058.16/57,090.40 = 9,978.16/x
  3. Step 3: Cross multiply
    38,058.16x = 57,090.40 × 9,978.16
  4. Step 4: Simplify right side
    38,058.16x = 569,657,145.66
  5. Step 5: Solve for x
    x = 569,657,145.66/38,058.16
  6. Step 6: Final answer
    x = 14,968.07

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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.