Home / 42,038.17-63,066.48-12,458.32

Finding the Fourth Proportional to 42,038.17, 63,066.48 and 12,458.32

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Solution

The fourth proportional to 42,038.17, 63,066.48 and 12,458.32 is: 18,690.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,038.17 : 63,066.48 = 12,458.32 : x
  2. Step 2: Convert to fraction form
    42,038.17/63,066.48 = 12,458.32/x
  3. Step 3: Cross multiply
    42,038.17x = 63,066.48 × 12,458.32
  4. Step 4: Simplify right side
    42,038.17x = 785,702,389.11
  5. Step 5: Solve for x
    x = 785,702,389.11/42,038.17
  6. Step 6: Final answer
    x = 18,690.21

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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.