Home / 42,459.19-63,688.78-19,058.29

Finding the Fourth Proportional to 42,459.19, 63,688.78 and 19,058.29

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Solution

The fourth proportional to 42,459.19, 63,688.78 and 19,058.29 is: 28,587.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,459.19 : 63,688.78 = 19,058.29 : x
  2. Step 2: Convert to fraction form
    42,459.19/63,688.78 = 19,058.29/x
  3. Step 3: Cross multiply
    42,459.19x = 63,688.78 × 19,058.29
  4. Step 4: Simplify right side
    42,459.19x = 1,213,799,032.12
  5. Step 5: Solve for x
    x = 1,213,799,032.12/42,459.19
  6. Step 6: Final answer
    x = 28,587.43

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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.